Add diffuse lighting, improve skybox and add timelapse

[dragonblocks_alpha.git] / src / client / scene.c

diff --git a/src/client/scene.c b/src/client/scene.c
index 7fac5e23ad4ada36faa8e1751a9313738fa44bd2..d8beb97a3d7f49068f80141f5ac0645a38e3985c 100644 (file)
--- a/src/client/scene.c
+++ b/src/client/scene.c
@@ -4,6 +4,7 @@
 #include "client/client.h"
 #include "client/scene.h"
 #include "client/shader.h"
+#include "day.h"
 #include "util.h"
 
 struct Scene scene;
@@ -24,6 +25,8 @@ bool scene_init()
        }
 
        scene.loc_MVP = glGetUniformLocation(scene.prog, "MVP");
+       scene.loc_daylight = glGetUniformLocation(scene.prog, "daylight");
+       scene.loc_lightDir = glGetUniformLocation(scene.prog, "lightDir");
 
        GLint texture_indices[scene.max_texture_units];
        for (GLint i = 0; i < scene.max_texture_units; i++)
@@ -58,15 +61,23 @@ void scene_add_object(Object *obj)
 
 void scene_render()
 {
-       glUseProgram(scene.prog);
-
-       mat4x4 view_proj;
-
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wpedantic"
+       mat4x4 view_proj;
        mat4x4_mul(view_proj, scene.projection, camera.view);
+
+       vec4 base_sunlight_dir = {0.0f, 0.0f, -1.0f, 1.0f};
+       vec4 sunlight_dir;
+       mat4x4 sunlight_mat;
+       mat4x4_identity(sunlight_mat);
+       mat4x4_rotate(sunlight_mat, sunlight_mat, 1.0f, 0.0f, 0.0f, get_sun_angle() + M_PI / 2.0f);
+       mat4x4_mul_vec4(sunlight_dir, sunlight_mat, base_sunlight_dir);
 #pragma GCC diagnostic pop
 
+       glUseProgram(scene.prog);
+       glProgramUniform3f(scene.prog, scene.loc_lightDir, sunlight_dir[0], sunlight_dir[1], sunlight_dir[2]);
+       glProgramUniform1f(scene.prog, scene.loc_daylight, get_daylight());
+
        for (ListPair **pairptr = &scene.objects.first; *pairptr != NULL; ) {
                ListPair *pair = *pairptr;
                Object *obj = pair->key;