Load model textures checkpoint.

Refactors some Vulkan items related to CompGrBinds and EntityTypes.
Adds some Vulkan globals related to textures.

Adds a number of placeholder items:
- Iffy use of setting Vulkan globals on instanced structs.
- Unimplemented and inaccurate shaders
- Iffy gltf sub-buffer logic (ignores vertex color data)
- MipMap TODOs
- TextureArray TODOs

1 files changed, 16 insertions, 0 deletions

diff --git a/assets/shaders/texture.frag b/assets/shaders/texture.frag
new file mode 100644
index 0000000..e63995f
--- /dev/null
+++ b/assets/shaders/texture.frag
@@ -0,0 +1,16 @@
+# version 450
+
+layout(location = 0) in vec3 fragColor;
+layout(location = 1) in vec3 fragTexCoord;
+
+layout(location = 0) out vec4 outColor;
+
+layout(binding = 1) uniform sampler2D texSampler;
+
+void main() {
+  vec4 color = texture(texSampler, fragTexCoord.xy);
+  if (color.w == 0) {
+    discard;
+  }
+  outColor = color;
+}