Commit 8cdf67f674be6b49bad19dbe8e728dedff64bd59
2024-02-06T20:06:08
fix opacity
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diff --git a/libc3/window/sdl2/demo/earth.c b/libc3/window/sdl2/demo/earth.c
index b60c791..a4044d8 100644
--- a/libc3/window/sdl2/demo/earth.c
+++ b/libc3/window/sdl2/demo/earth.c
@@ -66,7 +66,6 @@ bool earth_render (s_sequence *seq)
f64 *camera_rot_x_speed;
s_map *map;
s_gl_sphere *sphere;
- //f64 sphere_radius;
s_window_sdl2 *window;
assert(seq);
window = seq->window;
@@ -100,46 +99,19 @@ bool earth_render (s_sequence *seq)
assert(glGetError() == GL_NO_ERROR);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
assert(glGetError() == GL_NO_ERROR);
- //glEnable(GL_LIGHTING);
assert(glGetError() == GL_NO_ERROR);
- //glEnable(GL_LIGHT0);
assert(glGetError() == GL_NO_ERROR);
- //f32 ambiant[4] = {0.1f, 0.1f, 0.1f, 1.0f};
- //glLightfv(GL_LIGHT0, GL_AMBIENT, ambiant);
- //f32 diffuse[4] = {1.0f, 0.92f, 0.83f, 1.0f};
- //glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
- //glLightfv(GL_LIGHT0, GL_SPECULAR, diffuse);
- //f32 position[4] = {-1000.0, 0.0, 0.0, 1.0};
- //glLightfv(GL_LIGHT0, GL_POSITION, position);
- //glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0.1f);
- //glLightf(GL_LIGHT0, GL_LINEAR_ATTENUATION, 0.0f);
- //glLightf(GL_LIGHT0, GL_QUADRATIC_ATTENUATION, 0.0f);
assert(glGetError() == GL_NO_ERROR);
glEnable(GL_DEPTH_TEST);
assert(glGetError() == GL_NO_ERROR);
- //glPushMatrix();
- {
- assert(glGetError() == GL_NO_ERROR);
- assert(glGetError() == GL_NO_ERROR);
- //glEnable(GL_TEXTURE_2D);
- assert(glGetError() == GL_NO_ERROR);
- gl_camera_bind_texture(camera,
- gl_sprite_texture(&g_sprite_earth, 0));
- assert(glGetError() == GL_NO_ERROR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
- GL_LINEAR_MIPMAP_LINEAR);
- assert(glGetError() == GL_NO_ERROR);
- gl_sphere_render(sphere);
- /*
- glDisable(GL_TEXTURE_2D);
- glColor4f(0.0f, 0.0f, 0.0f, 1.0f);
- gl_sphere_render_wireframe(sphere);
- */
- } // glPopMatrix();
- //glDisable(GL_TEXTURE_2D);
+ gl_camera_bind_texture(camera,
+ gl_sprite_texture(&g_sprite_earth, 0));
+ assert(glGetError() == GL_NO_ERROR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+ GL_LINEAR_MIPMAP_LINEAR);
+ assert(glGetError() == GL_NO_ERROR);
+ gl_sphere_render(sphere);
glDisable(GL_DEPTH_TEST);
- //glDisable(GL_LIGHT0);
- //glDisable(GL_LIGHTING);
return true;
}
diff --git a/libc3/window/sdl2/gl_camera.c b/libc3/window/sdl2/gl_camera.c
index 8031f71..e48e197 100644
--- a/libc3/window/sdl2/gl_camera.c
+++ b/libc3/window/sdl2/gl_camera.c
@@ -72,7 +72,7 @@ static const char * g_gl_camera_fragment_shader_src =
" return f0 + (1 - f0) * pow(1.0 - lDotH, 5);\n"
"}\n"
"vec4 microfacetModel (int lightIdx, vec3 pos, vec3 n, vec4 color) {\n"
- " vec4 diffuseBrdf = vec4(0.0); // Metallic\n"
+ " vec4 diffuseBrdf = vec4(0.0, 0.0, 0.0, 1.0); // Metallic\n"
" if (! uMaterial.Metal) {\n"
" diffuseBrdf = color;\n"
" }\n"
@@ -176,7 +176,7 @@ s_gl_camera * gl_camera_init (s_gl_camera *camera, uw w, uw h)
camera->rotation.z = 0.0f;
camera->light_count = 1;
camera->light_pos[0] = (s_vec3) {-100, 0, 0};
- camera->light_color[0] = (s_rgb) {10, 10, 10};
+ camera->light_color[0] = (s_rgb) {1, 1, 1};
vertex_shader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertex_shader, 1, &g_gl_camera_vertex_shader_src,
NULL);
@@ -261,8 +261,8 @@ void gl_camera_render (s_gl_camera *camera)
assert(glGetError() == GL_NO_ERROR);
mat4_init_identity(&camera->projection_matrix);
mat4_perspective(&camera->projection_matrix, camera->fov_y,
- camera->aspect_ratio, camera->clip_z_near,
- camera->clip_z_far);
+ camera->aspect_ratio, camera->clip_z_near,
+ camera->clip_z_far);
mat4_init_identity(&camera->view_matrix);
mat4_translate(&camera->view_matrix, camera->position.x,
camera->position.y, camera->position.z);
@@ -273,8 +273,7 @@ void gl_camera_render (s_gl_camera *camera)
mat4_rotate_axis(&camera->view_matrix, camera->rotation.z,
&(s_vec3) { 0.0f, 0.0f, 1.0f });
mat4_init_identity(&camera->model_matrix);
- mat4_init_identity(&matrix);
- mat4_mult_mat4(&camera->view_matrix, &matrix, &matrix);
+ mat4_init_copy(&matrix, &camera->view_matrix);
mat4_mult_mat4(&camera->projection_matrix, &matrix, &matrix);
for (int i = 0; i < camera->light_count; i++)
mat4_mult_vec3(&matrix, camera->light_pos + i,