[WIP] Alpha blending enabled

graphics/shaders/shader.frag

@@ -6,7 +6,7 @@
 
 layout(set = 1, binding = 1) uniform sampler2D texSampler[];
 
-layout(location = 0) in vec4 fragColor;
+layout(location = 0) in vec3 fragColor;
 layout(location = 1) in vec2 fragTexCoord;
 layout(location = 2) in flat uint instanceTextureId;
 
@@ -17,5 +17,5 @@ void main() {
     /* if (sampled.a < 0.1)
         discard;
     outColor = sampled; */
-    outColor = fragColor * texture(texSampler[instanceTextureId], fragTexCoord).r;
+    outColor = vec4(fragColor, texture(texSampler[instanceTextureId], fragTexCoord).r);
 }

graphics/shaders/shader.vert

@@ -7,7 +7,7 @@ layout(binding = 0) uniform UniformBufferObject {
 } ubo;
 
 layout(location = 0) in vec3 inPosition;
-layout(location = 1) in vec4 inColor;
+layout(location = 1) in vec3 inColor;
 layout(location = 2) in vec2 inTexCoord;
 
 layout(location = 3) in vec3 instancePosition;
@@ -15,7 +15,7 @@ layout(location = 4) in vec3 instanceRotation;
 layout(location = 5) in float instanceScale;
 layout(location = 6) in uint instanceTextureId;
 
-layout(location = 0) out vec4 fragColor;
+layout(location = 0) out vec3 fragColor;
 layout(location = 1) out vec2 fragTexCoord;
 layout(location = 2) out uint outInstanceTextureId;
 

graphics/src/rse_graphics.c

@@ -44,25 +44,24 @@ void rse_graphics_test_function(void)
         return;
     }
     rse_fonts_initialize();
-    rse_fonts_load_from_file("/usr/share/fonts/JetBrainsMonoNerdFont/JetBrainsMonoNerdFont-Medium.ttf");
 
     // FIXME: Temporary array of vertices, for testing purposes
-    struct rse_vertex_t vertices[] = {{{-0.5f, -0.5f, 0.0f}, {1.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 0.0f}},
+    struct rse_vertex_t vertices[] = {{{-0.5f, -0.5f, 0.0f}, {1.0f, 0.0f, 0.0f}, {0.0f, 0.0f}},
-                                    {{0.5f, -0.5f, 0.0f}, {0.0f, 1.0f, 0.0f, 1.0f}, {1.0f, 0.0f}},
+                                    {{0.5f, -0.5f, 0.0f}, {0.0f, 1.0f, 0.0f}, {1.0f, 0.0f}},
-                                    {{0.5f, 0.5f, 0.0f}, {0.0f, 0.0f, 1.0f, 1.0f}, {1.0f, 1.0f}},
+                                    {{0.5f, 0.5f, 0.0f}, {0.0f, 0.0f, 1.0f}, {1.0f, 1.0f}},
-                                    {{-0.5f, 0.5f, 0.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {0.0f, 1.0f}}};
+                                    {{-0.5f, 0.5f, 0.0f}, {1.0f, 1.0f, 1.0f}, {0.0f, 1.0f}}};
 
-    struct rse_vertex_t vertices2[] = {{{-0.5f, -0.5f, -0.5f}, {1.0f, 1.0f, 1.0f, 1.0f}, {0.0f, 0.0f}},
+    struct rse_vertex_t vertices2[] = {{{-0.5f, -0.5f, -0.5f}, {1.0f, 1.0f, 1.0f}, {0.0f, 0.0f}},
-                                    {{0.5f, -0.5f, -0.5f}, {1.0f, 1.0f, 1.0f, 1.0f}, {1.0f, 0.0f}},
+                                    {{0.5f, -0.5f, -0.5f}, {1.0f, 1.0f, 1.0f}, {1.0f, 0.0f}},
-                                    {{0.5f, 0.5f, -0.5f}, {1.0f, 1.0f, 1.0f, 1.0f}, {1.0f, 1.0f}},
+                                    {{0.5f, 0.5f, -0.5f}, {1.0f, 1.0f, 1.0f}, {1.0f, 1.0f}},
-                                    {{-0.5f, 0.5f, -0.5f}, {1.0f, 1.0f, 1.0f, 1.0f}, {0.0f, 1.0f}}};
+                                    {{-0.5f, 0.5f, -0.5f}, {1.0f, 1.0f, 1.0f}, {0.0f, 1.0f}}};
 
     // FIXME: Temporary array of vertices, for testing purposes
     uint16_t indices[] = {0, 1, 2, 2, 3, 0};
 
     uint16_t mesh_id = create_mesh(vertices, indices, 6, 6);
     create_mesh_instance(mesh_id, (struct rse_instance_data_t){
-        {0.0f, 0.0f, 0.0f},
+        {0.0f, 0.0f, 0.4f},
         {0.0f, 0.0f, rse_math_deg_to_radians(45.0f)},
         1.0f,
         tex_id_2
@@ -83,7 +82,8 @@ void rse_graphics_test_function(void)
         tex_id_2
     });
 
-    rse_print_text("Hello World!", (struct vec3_t){-1.0f, 0.0f, 0.0f}, 0.3f);
+    rse_fonts_load_from_file("/usr/share/fonts/JetBrainsMonoNerdFont/JetBrainsMonoNerdFont-Medium.ttf");
+    rse_print_text("Hello World!", (struct vec3_t){-1.0f, 0.0f, 0.9f}, 0.3f);
 }
 
 rse_err_t rse_graphics_run(void)

graphics/src/rse_math.h

@@ -22,17 +22,6 @@ struct vec3_t {
     float z;
 };
 
-/**
- * @brief 4 points vector, useful for colors with alpha channel
- *
- */
-struct vec4_t {
-    float x;
-    float y;
-    float z;
-    float w;
-};
-
 /* 4x4 matrix.
  * [x_1 | x_2 | x_3 | x_4]
  * [y_1 | y_2 | y_3 | y_4]

graphics/src/rse_text_renderer.c

@@ -98,16 +98,16 @@ rse_err_t rse_fonts_load_from_file(const char* file_path)
         }
 
         font_vertices[0] = (struct rse_vertex_t) {
-            {g_fonts_data[iter].bearing_x, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {0.0f, 0.0f}
+            {g_fonts_data[iter].bearing_x, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f}, {0.0f, 0.0f}
         };
         font_vertices[1] = (struct rse_vertex_t) {
-            {g_fonts_data[iter].bearing_x + g_fonts_data[iter].width, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {1.0f, 0.0f}
+            {g_fonts_data[iter].bearing_x + g_fonts_data[iter].width, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f}, {1.0f, 0.0f}
         };
         font_vertices[2] = (struct rse_vertex_t) {
-            {g_fonts_data[iter].bearing_x + g_fonts_data[iter].width, g_fonts_data[iter].height, 0.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {1.0f, 1.0f}
+            {g_fonts_data[iter].bearing_x + g_fonts_data[iter].width, g_fonts_data[iter].height, 0.0f}, {1.0f, 1.0f, 1.0f}, {1.0f, 1.0f}
         };
         font_vertices[3] = (struct rse_vertex_t) {
-            {g_fonts_data[iter].bearing_x, g_fonts_data[iter].height, 0.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {0.0f, 1.0f}
+            {g_fonts_data[iter].bearing_x, g_fonts_data[iter].height, 0.0f}, {1.0f, 1.0f, 1.0f}, {0.0f, 1.0f}
         };
 
         g_fonts_data[iter].mesh_id = create_mesh(font_vertices, font_indices, 8, 6);

graphics/src/vulkan_commons.h

@@ -29,7 +29,7 @@ extern struct rse_vulkan_state_t g_vulkan_state;
 struct rse_vertex_t
 {
     struct vec3_t pos;
-    struct vec4_t color;
+    struct vec3_t color;
     struct vec3_t tex_coords;
 };