89 lines
3.0 KiB
GLSL
89 lines
3.0 KiB
GLSL
#pragma language glsl4
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struct vertex_t {
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vec3 Position;
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vec3 Normal;
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vec2 Texture;
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};
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vertex_t vertices[] = vertex_t[](
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vertex_t(vec3(-1.0, 1.0, -1.0), vec3(0.0, 1.0, 0.0), vec2(1.0, 0.0)),
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vertex_t(vec3(1.0, 1.0, 1.0), vec3(0.0, 1.0, 0.0), vec2(0.0, 1.0)),
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vertex_t(vec3(1.0, 1.0, -1.0), vec3(0.0, 1.0, 0.0), vec2(0.0, 0.0)),
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vertex_t(vec3(1.0, 1.0, 1.0), vec3(0.0, 0.0, 1.0), vec2(1.0, 1.0)),
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vertex_t(vec3(-1.0, -1.0, 1.0), vec3(0.0, 0.0, 1.0), vec2(0.0, 0.0)),
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vertex_t(vec3(1.0, -1.0, 1.0), vec3(0.0, 0.0, 1.0), vec2(1.0, 0.0)),
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vertex_t(vec3(-1.0, 1.0, 1.0), vec3(-1.0, 0.0, 0.0), vec2(1.0, 1.0)),
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vertex_t(vec3(-1.0, -1.0, -1.0), vec3(-1.0, 0.0, 0.0), vec2(0.0, 0.0)),
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vertex_t(vec3(-1.0, -1.0, 1.0), vec3(-1.0, 0.0, 0.0), vec2(1.0, 0.0)),
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vertex_t(vec3(1.0, -1.0, -1.0), vec3(0.0, -1.0, 0.0), vec2(1.0, 0.0)),
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vertex_t(vec3(-1.0, -1.0, 1.0), vec3(0.0, -1.0, 0.0), vec2(0.0, 1.0)),
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vertex_t(vec3(-1.0, -1.0, -1.0), vec3(0.0, -1.0, 0.0), vec2(0.0, 0.0)),
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vertex_t(vec3(1.0, 1.0, -1.0), vec3(1.0, 0.0, 0.0), vec2(1.0, 1.0)),
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vertex_t(vec3(1.0, -1.0, 1.0), vec3(1.0, 0.0, 0.0), vec2(0.0, 0.0)),
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vertex_t(vec3(1.0, -1.0, -1.0), vec3(1.0, 0.0, 0.0), vec2(1.0, 0.0)),
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vertex_t(vec3(-1.0, 1.0, -1.0), vec3(0.0, 0.0, -1.0), vec2(1.0, 1.0)),
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vertex_t(vec3(1.0, -1.0, -1.0), vec3(0.0, 0.0, -1.0), vec2(0.0, 0.0)),
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vertex_t(vec3(-1.0, -1.0, -1.0), vec3(0.0, 0.0, -1.0), vec2(1.0, 0.0)),
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vertex_t(vec3(-1.0, 1.0, 1.0), vec3(0.0, 1.0, 0.0), vec2(1.0, 1.0)),
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vertex_t(vec3(-1.0, 1.0, 1.0), vec3(0.0, 0.0, 1.0), vec2(0.0, 1.0)),
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vertex_t(vec3(-1.0, 1.0, -1.0), vec3(-1.0, 0.0, 0.0), vec2(0.0, 1.0)),
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vertex_t(vec3(1.0, -1.0, 1.0), vec3(0.0, -1.0, 0.0), vec2(1.0, 1.0)),
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vertex_t(vec3(1.0, 1.0, 1.0), vec3(1.0, 0.0, 0.0), vec2(0.0, 1.0)),
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vertex_t(vec3(1.0, 1.0, -1.0), vec3(0.0, 0.0, -1.0), vec2(0.0, 1.0))
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);
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uniform mat4 transform;
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out vec3 PixelNormal;
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//out vec3 PixelColor;
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out vec2 PixelTexture;
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out float PixelBlock;
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struct block_t {
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uint x_z_blockid;
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uint block_index;
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};
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layout (std430) readonly buffer BlocksLayout
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{
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block_t Blocks[];
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};
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/*
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vec3 palette(float t) {
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vec3 a = vec3(0.5, 0.5, 0.5);
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vec3 b = vec3(0.5, 0.5, 0.5);
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vec3 c = vec3(1.0, 1.0, 1.0);
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vec3 d = vec3(0.263, 0.416, 0.557);
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return a + b * cos(6.28318 * (c * t + d));
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}
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*/
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int sign_extend(uint x)
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{
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return int(((x + 0x80) & 0xff) - 0x80);
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}
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void vertexmain()
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{
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vertex_t vertex = vertices[gl_VertexID];
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block_t block = Blocks[int(gl_InstanceID)];
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float x = float(block.block_index / (128 * 16));
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float y = float(block.block_index % 128);
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float z = float(int(block.block_index / 128) % 16);
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float chunk_x = float(sign_extend((block.x_z_blockid >> 0) & 0xff));
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float chunk_z = float(sign_extend((block.x_z_blockid >> 8) & 0xff));
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int block_id = int((block.x_z_blockid >> 16) & 0xff);
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PixelNormal = vertex.Normal;
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//PixelColor = palette(float(block_id) * 0.01);
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PixelBlock = block_id;
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PixelTexture = vertex.Texture;
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vec3 position = ((vertex.Position * 0.5) + vec3(x, z, y) + vec3(chunk_x * 16.0, chunk_z * 16.0, 0));
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love_Position = transform * vec4(position, 1.0);
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}
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