Clément Foucault
e48a6fcc63
This replaces the direct shader uniform layout declaration by a linear search through a global buffer. Each instance has an attribute offset inside the global buffer and an attribute count. This removes any padding and tighly pack all uniform attributes inside a single buffer. This would also remove the limit of 8 attribute but it is kept because of compatibility with the old system that is still used by the old draw manager.
40 lines
972 B
GLSL
40 lines
972 B
GLSL
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void node_attribute_color(vec4 attr, out vec4 out_attr)
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{
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out_attr = attr_load_color_post(attr);
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}
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void node_attribute_temperature(vec4 attr, out vec4 out_attr)
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{
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out_attr.x = attr_load_temperature_post(attr.x);
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out_attr.y = 0.0;
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out_attr.z = 0.0;
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out_attr.w = 1.0;
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}
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void node_attribute_density(vec4 attr, out float out_attr)
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{
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out_attr = attr.x;
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}
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void node_attribute_flame(vec4 attr, out float out_attr)
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{
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out_attr = attr.x;
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}
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void node_attribute_uniform(vec4 attr, const float attr_hash, out vec4 out_attr)
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{
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/* Temporary solution to support both old UBO attribs and new SSBO loading.
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* Old UBO load is already done through `attr` and will just be passed through. */
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out_attr = attr_load_uniform(attr, floatBitsToUint(attr_hash));
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}
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void node_attribute(
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vec4 attr, out vec4 outcol, out vec3 outvec, out float outf, out float outalpha)
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{
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outcol = vec4(attr.xyz, 1.0);
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outvec = attr.xyz;
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outf = avg(attr.xyz);
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outalpha = attr.w;
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}
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