1 // Copyright (C) 2002-2012 Nikolaus Gebhardt
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2 // This file is part of the "Irrlicht Engine".
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3 // For conditions of distribution and use, see copyright notice in irrlicht.h
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5 #ifndef __S_MATERIAL_H_INCLUDED__
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6 #define __S_MATERIAL_H_INCLUDED__
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10 #include "irrArray.h"
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11 #include "irrMath.h"
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12 #include "EMaterialTypes.h"
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13 #include "EMaterialFlags.h"
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14 #include "SMaterialLayer.h"
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22 //! Flag for MaterialTypeParam (in combination with EMT_ONETEXTURE_BLEND) or for BlendFactor
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23 //! BlendFunc = source * sourceFactor + dest * destFactor
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26 EBF_ZERO = 0, //!< src & dest (0, 0, 0, 0)
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27 EBF_ONE, //!< src & dest (1, 1, 1, 1)
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28 EBF_DST_COLOR, //!< src (destR, destG, destB, destA)
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29 EBF_ONE_MINUS_DST_COLOR, //!< src (1-destR, 1-destG, 1-destB, 1-destA)
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30 EBF_SRC_COLOR, //!< dest (srcR, srcG, srcB, srcA)
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31 EBF_ONE_MINUS_SRC_COLOR, //!< dest (1-srcR, 1-srcG, 1-srcB, 1-srcA)
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32 EBF_SRC_ALPHA, //!< src & dest (srcA, srcA, srcA, srcA)
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33 EBF_ONE_MINUS_SRC_ALPHA, //!< src & dest (1-srcA, 1-srcA, 1-srcA, 1-srcA)
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34 EBF_DST_ALPHA, //!< src & dest (destA, destA, destA, destA)
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35 EBF_ONE_MINUS_DST_ALPHA, //!< src & dest (1-destA, 1-destA, 1-destA, 1-destA)
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36 EBF_SRC_ALPHA_SATURATE //!< src (min(srcA, 1-destA), idem, ...)
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39 //! Values defining the blend operation
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40 enum E_BLEND_OPERATION
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42 EBO_NONE = 0, //!< No blending happens
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43 EBO_ADD, //!< Default blending adds the color values
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44 EBO_SUBTRACT, //!< This mode subtracts the color values
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45 EBO_REVSUBTRACT,//!< This modes subtracts destination from source
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46 EBO_MIN, //!< Choose minimum value of each color channel
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47 EBO_MAX, //!< Choose maximum value of each color channel
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48 EBO_MIN_FACTOR, //!< Choose minimum value of each color channel after applying blend factors, not widely supported
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49 EBO_MAX_FACTOR, //!< Choose maximum value of each color channel after applying blend factors, not widely supported
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50 EBO_MIN_ALPHA, //!< Choose minimum value of each color channel based on alpha value, not widely supported
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51 EBO_MAX_ALPHA //!< Choose maximum value of each color channel based on alpha value, not widely supported
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54 //! MaterialTypeParam: e.g. DirectX: D3DTOP_MODULATE, D3DTOP_MODULATE2X, D3DTOP_MODULATE4X
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55 enum E_MODULATE_FUNC
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57 EMFN_MODULATE_1X = 1,
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58 EMFN_MODULATE_2X = 2,
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59 EMFN_MODULATE_4X = 4
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62 //! Comparison function, e.g. for depth buffer test
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63 enum E_COMPARISON_FUNC
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65 //! Depth test disabled (disable also write to depth buffer)
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67 //! <= test, default for e.g. depth test
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71 //! exclusive less comparison, i.e. <
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73 //! Succeeds almost always, except for exact equality
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79 //! test succeeds always
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81 //! Test never succeeds
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85 //! Enum values for enabling/disabling color planes for rendering
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88 //! No color enabled
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98 //! All colors, no alpha
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100 //! All planes enabled
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104 //! Source of the alpha value to take
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105 /** This is currently only supported in EMT_ONETEXTURE_BLEND. You can use an
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106 or'ed combination of values. Alpha values are modulated (multiplied). */
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107 enum E_ALPHA_SOURCE
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109 //! Use no alpha, somewhat redundant with other settings
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111 //! Use vertex color alpha
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113 //! Use texture alpha channel
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117 //! Pack srcFact, dstFact, Modulate and alpha source to MaterialTypeParam or BlendFactor
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118 /** alpha source can be an OR'ed combination of E_ALPHA_SOURCE values. */
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119 inline f32 pack_textureBlendFunc(const E_BLEND_FACTOR srcFact, const E_BLEND_FACTOR dstFact,
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120 const E_MODULATE_FUNC modulate=EMFN_MODULATE_1X, const u32 alphaSource=EAS_TEXTURE)
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122 const u32 tmp = (alphaSource << 20) | (modulate << 16) | (srcFact << 12) | (dstFact << 8) | (srcFact << 4) | dstFact;
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126 //! Pack srcRGBFact, dstRGBFact, srcAlphaFact, dstAlphaFact, Modulate and alpha source to MaterialTypeParam or BlendFactor
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127 /** alpha source can be an OR'ed combination of E_ALPHA_SOURCE values. */
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128 inline f32 pack_textureBlendFuncSeparate(const E_BLEND_FACTOR srcRGBFact, const E_BLEND_FACTOR dstRGBFact,
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129 const E_BLEND_FACTOR srcAlphaFact, const E_BLEND_FACTOR dstAlphaFact,
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130 const E_MODULATE_FUNC modulate=EMFN_MODULATE_1X, const u32 alphaSource=EAS_TEXTURE)
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132 const u32 tmp = (alphaSource << 20) | (modulate << 16) | (srcAlphaFact << 12) | (dstAlphaFact << 8) | (srcRGBFact << 4) | dstRGBFact;
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136 //! Unpack srcFact, dstFact, modulo and alphaSource factors
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137 /** The fields don't use the full byte range, so we could pack even more... */
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138 inline void unpack_textureBlendFunc(E_BLEND_FACTOR &srcFact, E_BLEND_FACTOR &dstFact,
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139 E_MODULATE_FUNC &modulo, u32& alphaSource, const f32 param)
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141 const u32 state = IR(param);
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142 alphaSource = (state & 0x00F00000) >> 20;
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143 modulo = E_MODULATE_FUNC( ( state & 0x000F0000 ) >> 16 );
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144 srcFact = E_BLEND_FACTOR ( ( state & 0x000000F0 ) >> 4 );
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145 dstFact = E_BLEND_FACTOR ( ( state & 0x0000000F ) );
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148 //! Unpack srcRGBFact, dstRGBFact, srcAlphaFact, dstAlphaFact, modulo and alphaSource factors
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149 /** The fields don't use the full byte range, so we could pack even more... */
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150 inline void unpack_textureBlendFuncSeparate(E_BLEND_FACTOR &srcRGBFact, E_BLEND_FACTOR &dstRGBFact,
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151 E_BLEND_FACTOR &srcAlphaFact, E_BLEND_FACTOR &dstAlphaFact,
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152 E_MODULATE_FUNC &modulo, u32& alphaSource, const f32 param)
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154 const u32 state = IR(param);
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155 alphaSource = (state & 0x00F00000) >> 20;
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156 modulo = E_MODULATE_FUNC( ( state & 0x000F0000 ) >> 16 );
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157 srcAlphaFact = E_BLEND_FACTOR ( ( state & 0x0000F000 ) >> 12 );
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158 dstAlphaFact = E_BLEND_FACTOR ( ( state & 0x00000F00 ) >> 8 );
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159 srcRGBFact = E_BLEND_FACTOR ( ( state & 0x000000F0 ) >> 4 );
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160 dstRGBFact = E_BLEND_FACTOR ( ( state & 0x0000000F ) );
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163 //! has blend factor alphablending
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164 inline bool textureBlendFunc_hasAlpha ( const E_BLEND_FACTOR factor )
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168 case EBF_SRC_ALPHA:
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169 case EBF_ONE_MINUS_SRC_ALPHA:
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170 case EBF_DST_ALPHA:
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171 case EBF_ONE_MINUS_DST_ALPHA:
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172 case EBF_SRC_ALPHA_SATURATE:
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180 //! These flags are used to specify the anti-aliasing and smoothing modes
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181 /** Techniques supported are multisampling, geometry smoothing, and alpha
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183 Some drivers don't support a per-material setting of the anti-aliasing
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184 modes. In those cases, FSAA/multisampling is defined by the device mode
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185 chosen upon creation via irr::SIrrCreationParameters.
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187 enum E_ANTI_ALIASING_MODE
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189 //! Use to turn off anti-aliasing for this material
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191 //! Default anti-aliasing mode
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193 //! High-quality anti-aliasing, not always supported, automatically enables SIMPLE mode
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196 //! Careful, enabling this can lead to software emulation under OpenGL
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197 EAAM_LINE_SMOOTH=4,
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198 //! point smoothing, often in software and slow, only with OpenGL
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199 EAAM_POINT_SMOOTH=8,
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200 //! All typical anti-alias and smooth modes
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201 EAAM_FULL_BASIC=15,
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202 //! Enhanced anti-aliasing for transparent materials
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203 /** Usually used with EMT_TRANSPARENT_ALPHA_CHANNEL_REF and multisampling. */
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204 EAAM_ALPHA_TO_COVERAGE=16
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207 //! These flags allow to define the interpretation of vertex color when lighting is enabled
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208 /** Without lighting being enabled the vertex color is the only value defining the fragment color.
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209 Once lighting is enabled, the four values for diffuse, ambient, emissive, and specular take over.
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210 With these flags it is possible to define which lighting factor shall be defined by the vertex color
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211 instead of the lighting factor which is the same for all faces of that material.
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212 The default is to use vertex color for the diffuse value, another pretty common value is to use
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213 vertex color for both diffuse and ambient factor. */
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214 enum E_COLOR_MATERIAL
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216 //! Don't use vertex color for lighting
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218 //! Use vertex color for diffuse light, this is default
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220 //! Use vertex color for ambient light
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222 //! Use vertex color for emissive light
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224 //! Use vertex color for specular light
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226 //! Use vertex color for both diffuse and ambient light
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227 ECM_DIFFUSE_AND_AMBIENT
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230 //! DEPRECATED. Will be removed after Irrlicht 1.9.
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231 /** Flags for the definition of the polygon offset feature. These flags define whether the offset should be into the screen, or towards the eye. */
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232 enum E_POLYGON_OFFSET
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234 //! Push pixel towards the far plane, away from the eye
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235 /** This is typically used for rendering inner areas. */
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237 //! Pull pixels towards the camera.
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238 /** This is typically used for polygons which should appear on top
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239 of other elements, such as decals. */
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243 //! Names for polygon offset direction
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244 const c8* const PolygonOffsetDirectionNames[] =
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251 //! For SMaterial.ZWriteEnable
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254 //! zwrite always disabled for this material
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257 //! This is the default setting for SMaterial and tries to handle things automatically.
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258 //! This is also the value which is set when SMaterial::setFlag(EMF_ZWRITE_ENABLE) is enabled.
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259 //! Usually zwriting is enabled non-transparent materials - as far as Irrlicht can recognize those.
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260 //! Basically Irrlicht tries to handle the zwriting for you and assumes transparent materials don't need it.
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261 //! This is addionally affected by IVideoDriver::setAllowZWriteOnTransparent
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264 //! zwrite always enabled for this material
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268 //! Names for E_ZWRITE
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269 const c8* const ZWriteNames[] =
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279 //! Maximum number of texture an SMaterial can have.
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280 /** SMaterial might ignore some textures in most function, like assignment and comparison,
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281 when SIrrlichtCreationParameters::MaxTextureUnits is set to a lower number.
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283 const u32 MATERIAL_MAX_TEXTURES = _IRR_MATERIAL_MAX_TEXTURES_;
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285 //! Struct for holding parameters for a material renderer
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286 // Note for implementors: Serialization is in CNullDriver
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290 //! Default constructor. Creates a solid, lit material with white colors
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292 : MaterialType(EMT_SOLID), AmbientColor(255,255,255,255), DiffuseColor(255,255,255,255),
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293 EmissiveColor(0,0,0,0), SpecularColor(255,255,255,255),
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294 Shininess(0.0f), MaterialTypeParam(0.0f), MaterialTypeParam2(0.0f), Thickness(1.0f),
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295 ZBuffer(ECFN_LESSEQUAL), AntiAliasing(EAAM_SIMPLE), ColorMask(ECP_ALL),
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296 ColorMaterial(ECM_DIFFUSE), BlendOperation(EBO_NONE), BlendFactor(0.0f),
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297 PolygonOffsetFactor(0), PolygonOffsetDirection(EPO_FRONT),
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298 PolygonOffsetDepthBias(0.f), PolygonOffsetSlopeScale(0.f),
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299 Wireframe(false), PointCloud(false), GouraudShading(true),
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300 Lighting(true), ZWriteEnable(EZW_AUTO), BackfaceCulling(true), FrontfaceCulling(false),
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301 FogEnable(false), NormalizeNormals(false), UseMipMaps(true)
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304 //! Copy constructor
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305 /** \param other Material to copy from. */
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306 SMaterial(const SMaterial& other)
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308 // These pointers are checked during assignment
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309 for (u32 i=0; i<MATERIAL_MAX_TEXTURES; ++i)
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310 TextureLayer[i].TextureMatrix = 0;
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314 //! Texture layer array.
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315 SMaterialLayer TextureLayer[MATERIAL_MAX_TEXTURES];
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317 //! Type of the material. Specifies how everything is blended together
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318 E_MATERIAL_TYPE MaterialType;
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320 //! How much ambient light (a global light) is reflected by this material.
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321 /** The default is full white, meaning objects are completely
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322 globally illuminated. Reduce this if you want to see diffuse
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323 or specular light effects. */
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324 SColor AmbientColor;
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326 //! How much diffuse light coming from a light source is reflected by this material.
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327 /** The default is full white. */
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328 SColor DiffuseColor;
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330 //! Light emitted by this material. Default is to emit no light.
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331 SColor EmissiveColor;
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333 //! How much specular light (highlights from a light) is reflected.
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334 /** The default is to reflect white specular light. See
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335 SMaterial::Shininess on how to enable specular lights. */
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336 SColor SpecularColor;
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338 //! Value affecting the size of specular highlights.
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339 /** A value of 20 is common. If set to 0, no specular
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340 highlights are being used. To activate, simply set the
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341 shininess of a material to a value in the range [0.5;128]:
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343 sceneNode->getMaterial(0).Shininess = 20.0f;
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346 You can change the color of the highlights using
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348 sceneNode->getMaterial(0).SpecularColor.set(255,255,255,255);
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351 The specular color of the dynamic lights
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352 (SLight::SpecularColor) will influence the the highlight color
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353 too, but they are set to a useful value by default when
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354 creating the light scene node.*/
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357 //! Free parameter, dependent on the material type.
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358 /** Mostly ignored, used for example in
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359 EMT_TRANSPARENT_ALPHA_CHANNEL and EMT_ONETEXTURE_BLEND. */
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360 f32 MaterialTypeParam;
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362 //! Second free parameter, dependent on the material type.
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363 /** Mostly ignored. */
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364 f32 MaterialTypeParam2;
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366 //! Thickness of non-3dimensional elements such as lines and points.
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369 //! Is the ZBuffer enabled? Default: ECFN_LESSEQUAL
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370 /** If you want to disable depth test for this material
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371 just set this parameter to ECFN_DISABLED.
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372 Values are from E_COMPARISON_FUNC. */
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375 //! Sets the antialiasing mode
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376 /** Values are chosen from E_ANTI_ALIASING_MODE. Default is
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377 EAAM_SIMPLE, i.e. simple multi-sample anti-aliasing. */
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380 //! Defines the enabled color planes
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381 /** Values are defined as or'ed values of the E_COLOR_PLANE enum.
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382 Only enabled color planes will be rendered to the current render
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383 target. Typical use is to disable all colors when rendering only to
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384 depth or stencil buffer, or using Red and Green for Stereo rendering. */
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387 //! Defines the interpretation of vertex color in the lighting equation
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388 /** Values should be chosen from E_COLOR_MATERIAL.
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389 When lighting is enabled, vertex color can be used instead of the
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390 material values for light modulation. This allows to easily change e.g. the
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391 diffuse light behavior of each face. The default, ECM_DIFFUSE, will result in
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392 a very similar rendering as with lighting turned off, just with light shading. */
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393 u8 ColorMaterial:3;
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395 //! Store the blend operation of choice
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396 /** Values to be chosen from E_BLEND_OPERATION. */
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397 E_BLEND_OPERATION BlendOperation:4;
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399 //! Store the blend factors
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400 /** textureBlendFunc/textureBlendFuncSeparate functions should be used to write
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401 properly blending factors to this parameter.
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402 Due to historical reasons this parameter is not used for material type
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403 EMT_ONETEXTURE_BLEND which uses MaterialTypeParam instead for the blend factor.
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404 It's generally used only for materials without any blending otherwise (like EMT_SOLID).
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405 It's main use is to allow having shader materials which can enable/disable
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406 blending after they have been created.
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407 When you set this you usually also have to set BlendOperation to a value != EBO_NONE
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408 (setting it to EBO_ADD is probably the most common one value). */
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411 //! DEPRECATED. Will be removed after Irrlicht 1.9. Please use PolygonOffsetDepthBias instead.
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412 /** Factor specifying how far the polygon offset should be made.
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413 Specifying 0 disables the polygon offset. The direction is specified separately.
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414 The factor can be from 0 to 7.
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415 Note: This probably never worked on Direct3D9 (was coded for D3D8 which had different value ranges) */
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416 u8 PolygonOffsetFactor:3;
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418 //! DEPRECATED. Will be removed after Irrlicht 1.9.
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419 /** Flag defining the direction the polygon offset is applied to.
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420 Can be to front or to back, specified by values from E_POLYGON_OFFSET. */
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421 E_POLYGON_OFFSET PolygonOffsetDirection:1;
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423 //! A constant z-buffer offset for a polygon/line/point
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424 /** The range of the value is driver specific.
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425 On OpenGL you get units which are multiplied by the smallest value that is guaranteed to produce a resolvable offset.
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426 On D3D9 you can pass a range between -1 and 1. But you should likely divide it by the range of the depthbuffer.
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427 Like dividing by 65535.0 for a 16 bit depthbuffer. Thought it still might produce too large of a bias.
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428 Some article (https://aras-p.info/blog/2008/06/12/depth-bias-and-the-power-of-deceiving-yourself/)
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429 recommends multiplying by 2.0*4.8e-7 (and strangely on both 16 bit and 24 bit). */
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430 f32 PolygonOffsetDepthBias;
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432 //! Variable Z-Buffer offset based on the slope of the polygon.
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433 /** For polygons looking flat at a camera you could use 0 (for example in a 2D game)
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434 But in most cases you will have polygons rendered at a certain slope.
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435 The driver will calculate the slope for you and this value allows to scale that slope.
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436 The complete polygon offset is: PolygonOffsetSlopeScale*slope + PolygonOffsetDepthBias
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437 A good default here is to use 1.f if you want to push the polygons away from the camera
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438 and -1.f to pull them towards the camera. */
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439 f32 PolygonOffsetSlopeScale;
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441 //! Draw as wireframe or filled triangles? Default: false
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442 /** The user can access a material flag using
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443 \code material.Wireframe=true \endcode
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444 or \code material.setFlag(EMF_WIREFRAME, true); \endcode */
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447 //! Draw as point cloud or filled triangles? Default: false
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450 //! Flat or Gouraud shading? Default: true
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451 bool GouraudShading:1;
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453 //! Will this material be lighted? Default: true
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456 //! Is the zbuffer writable or is it read-only. Default: EZW_AUTO.
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457 /** If this parameter is not EZW_OFF, you probably also want to set ZBuffer
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458 to values other than ECFN_DISABLED */
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459 E_ZWRITE ZWriteEnable:2;
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461 //! Is backface culling enabled? Default: true
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462 bool BackfaceCulling:1;
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464 //! Is frontface culling enabled? Default: false
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465 bool FrontfaceCulling:1;
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467 //! Is fog enabled? Default: false
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470 //! Should normals be normalized?
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471 /** Always use this if the mesh lit and scaled. Default: false */
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472 bool NormalizeNormals:1;
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474 //! Shall mipmaps be used if available
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475 /** Sometimes, disabling mipmap usage can be useful. Default: true */
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478 //! Gets the texture transformation matrix for level i
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479 /** \param i The desired level. Must not be larger than MATERIAL_MAX_TEXTURES
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480 \return Texture matrix for texture level i. */
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481 core::matrix4& getTextureMatrix(u32 i)
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483 return TextureLayer[i].getTextureMatrix();
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486 //! Gets the immutable texture transformation matrix for level i
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487 /** \param i The desired level.
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488 \return Texture matrix for texture level i, or identity matrix for levels larger than MATERIAL_MAX_TEXTURES. */
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489 const core::matrix4& getTextureMatrix(u32 i) const
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491 if (i<MATERIAL_MAX_TEXTURES)
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492 return TextureLayer[i].getTextureMatrix();
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494 return core::IdentityMatrix;
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497 //! Sets the i-th texture transformation matrix
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498 /** \param i The desired level.
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499 \param mat Texture matrix for texture level i. */
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500 void setTextureMatrix(u32 i, const core::matrix4& mat)
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502 if (i>=MATERIAL_MAX_TEXTURES)
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504 TextureLayer[i].setTextureMatrix(mat);
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507 //! Gets the i-th texture
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508 /** \param i The desired level.
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509 \return Texture for texture level i, if defined, else 0. */
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510 ITexture* getTexture(u32 i) const
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512 return i < MATERIAL_MAX_TEXTURES ? TextureLayer[i].Texture : 0;
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515 //! Sets the i-th texture
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516 /** If i>=MATERIAL_MAX_TEXTURES this setting will be ignored.
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517 \param i The desired level.
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518 \param tex Texture for texture level i. */
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519 void setTexture(u32 i, ITexture* tex)
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521 if (i>=MATERIAL_MAX_TEXTURES)
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523 TextureLayer[i].Texture = tex;
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526 //! Sets the Material flag to the given value
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527 /** \param flag The flag to be set.
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528 \param value The new value for the flag. */
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529 void setFlag(E_MATERIAL_FLAG flag, bool value)
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533 case EMF_WIREFRAME:
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534 Wireframe = value; break;
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535 case EMF_POINTCLOUD:
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536 PointCloud = value; break;
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537 case EMF_GOURAUD_SHADING:
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538 GouraudShading = value; break;
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540 Lighting = value; break;
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542 ZBuffer = value; break;
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543 case EMF_ZWRITE_ENABLE:
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544 ZWriteEnable = value ? EZW_AUTO : EZW_OFF; break;
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545 case EMF_BACK_FACE_CULLING:
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546 BackfaceCulling = value; break;
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547 case EMF_FRONT_FACE_CULLING:
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548 FrontfaceCulling = value; break;
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549 case EMF_BILINEAR_FILTER:
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551 for (u32 i=0; i<MATERIAL_MAX_TEXTURES; ++i)
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552 TextureLayer[i].BilinearFilter = value;
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555 case EMF_TRILINEAR_FILTER:
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557 for (u32 i=0; i<MATERIAL_MAX_TEXTURES; ++i)
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558 TextureLayer[i].TrilinearFilter = value;
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561 case EMF_ANISOTROPIC_FILTER:
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564 for (u32 i=0; i<MATERIAL_MAX_TEXTURES; ++i)
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565 TextureLayer[i].AnisotropicFilter = 0xFF;
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567 for (u32 i=0; i<MATERIAL_MAX_TEXTURES; ++i)
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568 TextureLayer[i].AnisotropicFilter = 0;
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571 case EMF_FOG_ENABLE:
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572 FogEnable = value; break;
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573 case EMF_NORMALIZE_NORMALS:
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574 NormalizeNormals = value; break;
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575 case EMF_TEXTURE_WRAP:
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577 for (u32 i=0; i<MATERIAL_MAX_TEXTURES; ++i)
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579 TextureLayer[i].TextureWrapU = (E_TEXTURE_CLAMP)value;
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580 TextureLayer[i].TextureWrapV = (E_TEXTURE_CLAMP)value;
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581 TextureLayer[i].TextureWrapW = (E_TEXTURE_CLAMP)value;
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585 case EMF_ANTI_ALIASING:
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586 AntiAliasing = value?EAAM_SIMPLE:EAAM_OFF; break;
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587 case EMF_COLOR_MASK:
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588 ColorMask = value?ECP_ALL:ECP_NONE; break;
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589 case EMF_COLOR_MATERIAL:
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590 ColorMaterial = value?ECM_DIFFUSE:ECM_NONE; break;
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591 case EMF_USE_MIP_MAPS:
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592 UseMipMaps = value; break;
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593 case EMF_BLEND_OPERATION:
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594 BlendOperation = value?EBO_ADD:EBO_NONE; break;
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595 case EMF_BLEND_FACTOR:
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597 case EMF_POLYGON_OFFSET:
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598 PolygonOffsetFactor = value?1:0;
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599 PolygonOffsetDirection = EPO_BACK;
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600 PolygonOffsetSlopeScale = value?1.f:0.f;
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601 PolygonOffsetDepthBias = value?1.f:0.f;
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607 //! Gets the Material flag
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608 /** \param flag The flag to query.
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609 \return The current value of the flag. */
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610 bool getFlag(E_MATERIAL_FLAG flag) const
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614 case EMF_WIREFRAME:
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616 case EMF_POINTCLOUD:
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618 case EMF_GOURAUD_SHADING:
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619 return GouraudShading;
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623 return ZBuffer!=ECFN_DISABLED;
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624 case EMF_ZWRITE_ENABLE:
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625 return ZWriteEnable != EZW_OFF;
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626 case EMF_BACK_FACE_CULLING:
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627 return BackfaceCulling;
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628 case EMF_FRONT_FACE_CULLING:
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629 return FrontfaceCulling;
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630 case EMF_BILINEAR_FILTER:
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631 return TextureLayer[0].BilinearFilter;
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632 case EMF_TRILINEAR_FILTER:
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633 return TextureLayer[0].TrilinearFilter;
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634 case EMF_ANISOTROPIC_FILTER:
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635 return TextureLayer[0].AnisotropicFilter!=0;
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636 case EMF_FOG_ENABLE:
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638 case EMF_NORMALIZE_NORMALS:
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639 return NormalizeNormals;
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640 case EMF_TEXTURE_WRAP:
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641 return !(TextureLayer[0].TextureWrapU ||
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642 TextureLayer[0].TextureWrapV ||
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643 TextureLayer[0].TextureWrapW);
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644 case EMF_ANTI_ALIASING:
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645 return (AntiAliasing==1);
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646 case EMF_COLOR_MASK:
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647 return (ColorMask!=ECP_NONE);
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648 case EMF_COLOR_MATERIAL:
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649 return (ColorMaterial != ECM_NONE);
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650 case EMF_USE_MIP_MAPS:
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652 case EMF_BLEND_OPERATION:
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653 return BlendOperation != EBO_NONE;
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654 case EMF_BLEND_FACTOR:
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655 return BlendFactor != 0.f;
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656 case EMF_POLYGON_OFFSET:
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657 return PolygonOffsetFactor != 0 || PolygonOffsetDepthBias != 0.f;
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663 //! Inequality operator
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664 /** \param b Material to compare to.
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665 \return True if the materials differ, else false. */
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666 inline bool operator!=(const SMaterial& b) const
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669 MaterialType != b.MaterialType ||
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670 AmbientColor != b.AmbientColor ||
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671 DiffuseColor != b.DiffuseColor ||
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672 EmissiveColor != b.EmissiveColor ||
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673 SpecularColor != b.SpecularColor ||
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674 Shininess != b.Shininess ||
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675 MaterialTypeParam != b.MaterialTypeParam ||
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676 MaterialTypeParam2 != b.MaterialTypeParam2 ||
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677 Thickness != b.Thickness ||
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678 Wireframe != b.Wireframe ||
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679 PointCloud != b.PointCloud ||
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680 GouraudShading != b.GouraudShading ||
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681 Lighting != b.Lighting ||
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682 ZBuffer != b.ZBuffer ||
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683 ZWriteEnable != b.ZWriteEnable ||
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684 BackfaceCulling != b.BackfaceCulling ||
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685 FrontfaceCulling != b.FrontfaceCulling ||
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686 FogEnable != b.FogEnable ||
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687 NormalizeNormals != b.NormalizeNormals ||
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688 AntiAliasing != b.AntiAliasing ||
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689 ColorMask != b.ColorMask ||
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690 ColorMaterial != b.ColorMaterial ||
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691 BlendOperation != b.BlendOperation ||
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692 BlendFactor != b.BlendFactor ||
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693 PolygonOffsetFactor != b.PolygonOffsetFactor ||
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694 PolygonOffsetDirection != b.PolygonOffsetDirection ||
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695 PolygonOffsetDepthBias != b.PolygonOffsetDepthBias ||
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696 PolygonOffsetSlopeScale != b.PolygonOffsetSlopeScale ||
\r
697 UseMipMaps != b.UseMipMaps
\r
699 for (u32 i=0; (i<MATERIAL_MAX_TEXTURES) && !different; ++i)
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701 different |= (TextureLayer[i] != b.TextureLayer[i]);
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706 //! Equality operator
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707 /** \param b Material to compare to.
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708 \return True if the materials are equal, else false. */
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709 inline bool operator==(const SMaterial& b) const
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710 { return !(b!=*this); }
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712 //! Check if material needs alpha blending
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713 bool isAlphaBlendOperation() const
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715 if (BlendOperation != EBO_NONE && BlendFactor != 0.f)
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717 E_BLEND_FACTOR srcRGBFact = EBF_ZERO;
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718 E_BLEND_FACTOR dstRGBFact = EBF_ZERO;
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719 E_BLEND_FACTOR srcAlphaFact = EBF_ZERO;
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720 E_BLEND_FACTOR dstAlphaFact = EBF_ZERO;
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721 E_MODULATE_FUNC modulo = EMFN_MODULATE_1X;
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722 u32 alphaSource = 0;
\r
724 unpack_textureBlendFuncSeparate(srcRGBFact, dstRGBFact, srcAlphaFact, dstAlphaFact, modulo, alphaSource, BlendFactor);
\r
726 if (textureBlendFunc_hasAlpha(srcRGBFact) || textureBlendFunc_hasAlpha(dstRGBFact) ||
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727 textureBlendFunc_hasAlpha(srcAlphaFact) || textureBlendFunc_hasAlpha(dstAlphaFact))
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735 //! Check for some fixed-function transparent types. Still used internally, but might be deprecated soon.
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736 //! You probably should not use this anymore, IVideoDriver::needsTransparentRenderPass is more useful in most situations
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737 //! as it asks the material renders directly what they do with the material.
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738 bool isTransparent() const
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740 if ( MaterialType==EMT_TRANSPARENT_ADD_COLOR ||
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741 MaterialType==EMT_TRANSPARENT_ALPHA_CHANNEL ||
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742 MaterialType==EMT_TRANSPARENT_VERTEX_ALPHA ||
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743 MaterialType==EMT_TRANSPARENT_REFLECTION_2_LAYER )
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750 //! global const identity Material
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751 IRRLICHT_API extern SMaterial IdentityMaterial;
\r
752 } // end namespace video
\r
753 } // end namespace irr
\r
projects / irrlicht.git / blob