voxel biomes and CPU pushed blocks

resources/EngineResources/shaders/packed_scene_fragment.glsl

@@ -0,0 +1,88 @@
+#version 450
+#extension GL_EXT_nonuniform_qualifier : require
+
+const int MAX_TEXTURES = 128;
+
+layout(location = 0) in vec4 inPos;
+layout(location = 1) in vec3 inNormal;
+layout(location = 2) in vec3 inTangent;
+layout(location = 3) in vec3 inBitangent;
+layout(location = 4) in vec2 inTextCoords;
+layout(location = 5) in mat4 viewMatrix;
+layout(location = 9) in flat uint textureIndex;
+
+layout(location = 0) out vec4 outAlbedo;
+layout(location = 1) out vec4 outViewPos;
+
+struct Material {
+    vec4 diffuseColor; //16
+    uint hasTexture; //20
+    uint textureIdx; //24
+    uint hasNormalMap; //28
+    uint normalMapIdx; //32
+    uint hasRoughMap;  //36
+    uint roughMapIdx;  //40
+    float roughnessFactor; //44
+    float metallicFactor;  //48
+    vec4 emissiveColour; //64
+    uint hasEmissiveMap;  //68
+    uint emissiveMapIdx;  //72
+    uint hasTranslucencyMap;  //76
+    uint translucencyMapIdx;  //80
+    float translucencyFactor;  //84
+    uint hasOpacityMap;  //88
+    uint OpacityMapIdx;  //92
+    float OpacityFactor;  //96
+    float reflectiveness;  //100
+    float refractiveness;  //104
+    float Padding1;  //108
+    float Padding2;  //112
+};
+
+layout(set = 2, binding = 0) readonly buffer MaterialUniform{
+    Material materials[];
+} matUniform;
+
+layout(set = 3, binding = 0) uniform sampler2D textSampler[MAX_TEXTURES];
+
+
+layout(push_constant) uniform pc{
+    layout(offset = 64) uint materialIdx;
+} push_constants;
+
+void main()
+{
+    vec4 viewPos = vec4(viewMatrix * inPos);
+    outViewPos = viewPos;
+
+    Material material = matUniform.materials[textureIndex];
+
+    uint albedoTextureIndex = material.textureIdx;
+    if (albedoTextureIndex >= MAX_TEXTURES){
+        outAlbedo = vec4(0.0,0.0,1.0,1.0);
+        return;
+    }
+
+    if(material.hasTexture == 1){
+        vec4 texColor = texture(textSampler[nonuniformEXT(albedoTextureIndex)], inTextCoords);
+        outAlbedo = texColor;
+    } else{
+        outAlbedo = material.diffuseColor;
+    }
+
+    vec4 Opacity = vec4(outAlbedo.a, outAlbedo.a, outAlbedo.a, 1.0);
+
+    if (material.OpacityFactor > 0.0 && material.OpacityFactor < 1.0) {
+        Opacity = vec4(material.OpacityFactor, material.OpacityFactor, material.OpacityFactor, 1.0);
+    }
+
+    if (material.hasOpacityMap > 0 && material.OpacityMapIdx < MAX_TEXTURES) {
+        Opacity = texture(textSampler[nonuniformEXT(material.OpacityMapIdx)], inTextCoords);
+    }
+
+    float opacityf = Opacity.x + Opacity.y + Opacity.z;
+    opacityf = opacityf / 3;
+    if(opacityf < 0.4){ discard; }
+
+    outAlbedo = vec4(outAlbedo.rgb, opacityf);
+}