Clément Foucault
80859a6cb2
This commit removes all EEVEE specific code from the `gpu_shader_material*.glsl` files. It defines a clear interface to evaluate the closure nodes leaving more flexibility to the render engine. Some of the long standing workaround are fixed: - bump mapping support is no longer duplicating a lot of node and is instead compiled into a function call. - bump rewiring to Normal socket is no longer needed as we now use a global `g_data.N` for that. Closure sampling with upstread weight eval is now supported if the engine needs it. This also makes all the material GLSL sources use `GPUSource` for better debugging experience. The `GPUFunction` parsing now happens in `GPUSource` creation. The whole `GPUCodegen` now uses the `ShaderCreateInfo` and is object type agnostic. Is has also been rewritten in C++. This patch changes a view behavior for EEVEE: - Mix shader node factor imput is now clamped. - Tangent Vector displacement behavior is now matching cycles. - The chosen BSDF used for SSR might change. - Hair shading may have very small changes on very large hairs when using hair polygon stripes. - ShaderToRGB node will remove any SSR and SSS form a shader. - SSS radius input now is no longer a scaling factor but defines an average radius. The SSS kernel "shape" (radii) are still defined by the socket default values. Appart from the listed changes no other regressions are expected.
30 lines
969 B
GLSL
30 lines
969 B
GLSL
#pragma BLENDER_REQUIRE(gpu_shader_material_math_util.glsl)
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void mapping_mat4(
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vec3 vec, vec4 m0, vec4 m1, vec4 m2, vec4 m3, vec3 minvec, vec3 maxvec, out vec3 outvec)
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{
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mat4 mat = mat4(m0, m1, m2, m3);
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outvec = (mat * vec4(vec, 1.0)).xyz;
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outvec = clamp(outvec, minvec, maxvec);
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}
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void mapping_point(vec3 vector, vec3 location, vec3 rotation, vec3 scale, out vec3 result)
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{
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result = (euler_to_mat3(rotation) * (vector * scale)) + location;
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}
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void mapping_texture(vec3 vector, vec3 location, vec3 rotation, vec3 scale, out vec3 result)
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{
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result = safe_divide(transpose(euler_to_mat3(rotation)) * (vector - location), scale);
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}
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void mapping_vector(vec3 vector, vec3 location, vec3 rotation, vec3 scale, out vec3 result)
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{
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result = euler_to_mat3(rotation) * (vector * scale);
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}
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void mapping_normal(vec3 vector, vec3 location, vec3 rotation, vec3 scale, out vec3 result)
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{
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result = normalize(euler_to_mat3(rotation) * safe_divide(vector, scale));
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}
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