71dfcf4558
Replaces all usage by the the gpu_shader_math equivalent. This is because the old shader library was quite tangled. This avoids dependency hell trying to mix libraries. Changes are split into isolated commits until I had to do mass changes because of inter- dependencies. Pull Request: https://projects.blender.org/blender/blender/pulls/113631
71 lines
1.6 KiB
GLSL
71 lines
1.6 KiB
GLSL
/* SPDX-FileCopyrightText: 2019-2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma BLENDER_REQUIRE(gpu_shader_common_math.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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float temperature = attr_load_temperature_post(attr.x);
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out_attr.x = temperature;
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out_attr.y = temperature;
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out_attr.z = temperature;
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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 attributes 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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vec4 attr_load_layer(const uint attr_hash)
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{
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#ifdef VLATTR_LIB
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/* The first record of the buffer stores the length. */
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uint left = 0, right = drw_layer_attrs[0].buffer_length;
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while (left < right) {
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uint mid = (left + right) / 2;
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uint hash = drw_layer_attrs[mid].hash_code;
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if (hash < attr_hash) {
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left = mid + 1;
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}
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else if (hash > attr_hash) {
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right = mid;
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}
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else {
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return drw_layer_attrs[mid].data;
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}
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}
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#endif
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return vec4(0.0);
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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 = math_average(attr.xyz);
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outalpha = attr.w;
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}
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