[WIP] Create pipeline for transparent on screen objects

graphics/CMakeLists.txt

@@ -31,7 +31,8 @@ ENV opengl
 FORMAT num
 SOURCES
 shaders/shader.vert
-shaders/shader.frag
+shaders/solid_objects.frag
+shaders/on_screen_text.frag
 )
 
 add_library(rse_graphics SHARED shaders/shader.vert.num shaders/shader.frag.num)

graphics/shaders/solid_objects.frag

@@ -0,0 +1,18 @@
+#version 450
+
+/* Each time texture count is changed this value also need to change. I have to fix it somehow. */
+
+#extension GL_EXT_nonuniform_qualifier : enable
+
+layout(set = 1, binding = 1) uniform sampler2D texSampler[];
+
+layout(location = 0) in vec3 fragColor;
+layout(location = 1) in vec2 fragTexCoord;
+layout(location = 2) in flat uint instanceTextureId;
+
+layout(location = 0) out vec4 outColor;
+
+void main() {
+    vec4 texturePixels = texture(texSampler[instanceTextureId], fragTexCoord);
+    outColor = vec4(fragColor * texturePixels, texturePixels.a);
+}

graphics/src/rse_graphics.c

@@ -51,25 +51,25 @@ void rse_graphics_test_function(void)
                                     {{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}, {0.0f, 1.0f}}};
 
-    struct rse_vertex_t vertices2[] = {{{-0.5f, -0.5f, -0.5f}, {1.0f, 1.0f, 1.0f}, {0.0f, 0.0f}},
+    struct rse_vertex_t vertices2[] = {{{-0.5f, -0.5f, 0.0f}, {1.0f, 1.0f, 1.0f}, {0.0f, 0.0f}},
-                                    {{0.5f, -0.5f, -0.5f}, {1.0f, 1.0f, 1.0f}, {1.0f, 0.0f}},
+                                    {{0.5f, -0.5f, 0.0f}, {1.0f, 1.0f, 1.0f}, {1.0f, 0.0f}},
-                                    {{0.5f, 0.5f, -0.5f}, {1.0f, 1.0f, 1.0f}, {1.0f, 1.0f}},
+                                    {{0.5f, 0.5f, 0.0f}, {1.0f, 1.0f, 1.0f}, {1.0f, 1.0f}},
-                                    {{-0.5f, 0.5f, -0.5f}, {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}}};
 
     // 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, 0.4f},
+        {0.0f, 0.0f, 2.4f},
         {0.0f, 0.0f, rse_math_deg_to_radians(45.0f)},
         1.0f,
         tex_id_2
     });
 
     create_mesh_instance(mesh_id, (struct rse_instance_data_t){
-        {-1.0f, 0.0f, 0.3f},
+        {-0.5f, 0.0f, -1.0f},
-        {0.0f, 0.0f, 0.0f},
+        {0.0f, 0.0f, rse_math_deg_to_radians(10.0f)},
         1.0f,
         tex_id_2
     });

graphics/src/rse_vulkan_image.c

@@ -572,7 +572,7 @@ rse_err_t find_depth_format(VkFormat* found_format)
 {
     #define formats_count 3
     rse_err_t status;
-    VkFormat formats[formats_count] = {VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, VK_FORMAT_D24_UNORM_S8_UINT};
+    VkFormat formats[formats_count] = {VK_FORMAT_D32_SFLOAT};
 
     STATUS_CHECK(find_supported_format(
         formats,

graphics/src/vulkan_pipeline.c

@@ -16,7 +16,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#define SHADER_MODULES_COUNT 2U
+#define SHADER_MODULES_COUNT 3U
 
 enum shader_stage_t
 {
@@ -33,7 +33,8 @@ VkShaderModule g_shader_modules[SHADER_MODULES_COUNT];
 
 const char* g_shader_paths[] = {
          "../graphics/shaders/shader.vert.num",
-         "../graphics/shaders/shader.frag.num",
+         "../graphics/shaders/solid_objects.frag.num",
+         "../graphics/shaders/on_screen_text.frag.num",
 };
 
 static VkVertexInputBindingDescription get_binding_description()