luboslenco
60 lines
3.2 KiB
Haxe
60 lines
3.2 KiB
Haxe
package arm.node;
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import arm.node.MaterialShader;
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class MakeBlur {
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public static function run(vert: MaterialShader, frag: MaterialShader) {
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#if (kha_opengl || kha_webgl)
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frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2(sp.x * gbufferSize.x, (1.0 - sp.y) * gbufferSize.y), 0).ba;');
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#else
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frag.write('vec2 texCoordInp = texelFetch(gbuffer2, ivec2(sp.x * gbufferSize.x, sp.y * gbufferSize.y), 0).ba;');
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#end
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frag.write('vec3 basecol = vec3(0.0, 0.0, 0.0);');
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frag.write('float roughness = 0.0;');
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frag.write('float metallic = 0.0;');
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frag.write('float occlusion = 0.0;');
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frag.write('vec3 nortan = vec3(0.0, 0.0, 0.0);');
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frag.write('float height = 0.0;');
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frag.write('float mat_opacity = 1.0;');
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frag.write('float opacity = 0.0;');
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if (Context.material.paintEmis) {
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frag.write('float emis = 0.0;');
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}
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if (Context.material.paintSubs) {
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frag.write('float subs = 0.0;');
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}
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#if (kha_direct3d11 || kha_direct3d12)
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frag.write('const float blur_weight[15] = {0.034619 / 2.0, 0.044859 / 2.0, 0.055857 / 2.0, 0.066833 / 2.0, 0.076841 / 2.0, 0.084894 / 2.0, 0.090126 / 2.0, 0.09194 / 2.0, 0.090126 / 2.0, 0.084894 / 2.0, 0.076841 / 2.0, 0.066833 / 2.0, 0.055857 / 2.0, 0.044859 / 2.0, 0.034619 / 2.0};');
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#else
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frag.write('const float blur_weight[15] = float[](0.034619 / 2.0, 0.044859 / 2.0, 0.055857 / 2.0, 0.066833 / 2.0, 0.076841 / 2.0, 0.084894 / 2.0, 0.090126 / 2.0, 0.09194 / 2.0, 0.090126 / 2.0, 0.084894 / 2.0, 0.076841 / 2.0, 0.066833 / 2.0, 0.055857 / 2.0, 0.044859 / 2.0, 0.034619 / 2.0);');
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#end
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frag.add_uniform('float texpaintSize', '_texpaintSize');
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frag.write('float blur_step = 1.0 / texpaintSize;');
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// X
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frag.write('for (int i = -7; i <= 7; ++i) {');
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frag.write('vec4 texpaint_sample = texture(texpaint_undo, texCoordInp + vec2(blur_step * float(i), 0.0));');
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frag.write('opacity += texpaint_sample.a * blur_weight[i + 7];');
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frag.write('basecol += texpaint_sample.rgb * blur_weight[i + 7];');
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frag.write('vec3 texpaint_pack_sample = texture(texpaint_pack_undo, texCoordInp + vec2(blur_step * float(i), 0.0)).rgb * blur_weight[i + 7];');
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frag.write('roughness += texpaint_pack_sample.g;');
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frag.write('metallic += texpaint_pack_sample.b;');
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frag.write('occlusion += texpaint_pack_sample.r;');
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frag.write('nortan += texture(texpaint_nor_undo, texCoordInp + vec2(blur_step * float(i), 0.0)).rgb * blur_weight[i + 7];');
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frag.write('}');
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// Y
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frag.write('for (int j = -7; j <= 7; ++j) {');
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frag.write('vec4 texpaint_sample = texture(texpaint_undo, texCoordInp + vec2(0.0, blur_step * float(j)));');
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frag.write('opacity += texpaint_sample.a * blur_weight[j + 7];');
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frag.write('basecol += texpaint_sample.rgb * blur_weight[j + 7];');
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frag.write('vec3 texpaint_pack_sample = texture(texpaint_pack_undo, texCoordInp + vec2(0.0, blur_step * float(j))).rgb * blur_weight[j + 7];');
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frag.write('roughness += texpaint_pack_sample.g;');
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frag.write('metallic += texpaint_pack_sample.b;');
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frag.write('occlusion += texpaint_pack_sample.r;');
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frag.write('nortan += texture(texpaint_nor_undo, texCoordInp + vec2(0.0, blur_step * float(j))).rgb * blur_weight[j + 7];');
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frag.write('}');
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frag.write('opacity *= brushOpacity;');
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}
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}
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