[WIP] Try to enable alpha blending

graphics/shaders/shader.frag

@@ -6,12 +6,16 @@
 
 layout(set = 1, binding = 1) uniform sampler2D texSampler[];
 
-layout(location = 0) in vec3 fragColor;
+layout(location = 0) in vec4 fragColor;
 layout(location = 1) in vec2 fragTexCoord;
 layout(location = 2) in flat uint instanceTextureId;
 
 layout(location = 0) out vec4 outColor;
 
 void main() {
-    outColor = vec4(fragColor * texture(texSampler[instanceTextureId], fragTexCoord).rgb, 1.0);
+    /* vec4 sampled = vec4(1.0, 1.0, 1.0, texture(texSampler[instanceTextureId], fragTexCoord).r);*/
+    /* if (sampled.a < 0.1)
+        discard;
+    outColor = sampled; */
+    outColor = fragColor * texture(texSampler[instanceTextureId], fragTexCoord).r;
 }