mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-06-06 06:33:30 +00:00
51cfe26bb7
Use the new semantic constant value information to significantly reduce the complex indexing logic emitted for UBO accesses. This will dramatically reduce the number of `for` loops that are decayed to `while` loops. Change-Id: I1b0adb5edde2b4ed39c6beafc2e28106b86e0edd Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57701 Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: James Price <jrprice@google.com>
100 lines
3.0 KiB
HLSL
100 lines
3.0 KiB
HLSL
struct tint_symbol_1 {
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float2 a_particlePos : TEXCOORD0;
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float2 a_particleVel : TEXCOORD1;
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float2 a_pos : TEXCOORD2;
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};
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struct tint_symbol_2 {
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float4 value : SV_Position;
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};
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tint_symbol_2 vert_main(tint_symbol_1 tint_symbol) {
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const float2 a_particlePos = tint_symbol.a_particlePos;
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const float2 a_particleVel = tint_symbol.a_particleVel;
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const float2 a_pos = tint_symbol.a_pos;
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float angle = -(atan2(a_particleVel.x, a_particleVel.y));
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float2 pos = float2(((a_pos.x * cos(angle)) - (a_pos.y * sin(angle))), ((a_pos.x * sin(angle)) + (a_pos.y * cos(angle))));
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const tint_symbol_2 tint_symbol_9 = {float4((pos + a_particlePos), 0.0f, 1.0f)};
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return tint_symbol_9;
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}
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struct tint_symbol_3 {
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float4 value : SV_Target0;
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};
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tint_symbol_3 frag_main() {
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const tint_symbol_3 tint_symbol_10 = {float4(1.0f, 1.0f, 1.0f, 1.0f)};
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return tint_symbol_10;
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}
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cbuffer cbuffer_params : register(b0, space0) {
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uint4 params[2];
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};
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RWByteAddressBuffer particlesA : register(u1, space0);
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RWByteAddressBuffer particlesB : register(u2, space0);
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struct tint_symbol_5 {
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uint3 gl_GlobalInvocationID : SV_DispatchThreadID;
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};
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[numthreads(1, 1, 1)]
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void comp_main(tint_symbol_5 tint_symbol_4) {
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const uint3 gl_GlobalInvocationID = tint_symbol_4.gl_GlobalInvocationID;
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uint index = gl_GlobalInvocationID.x;
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if ((index >= 5u)) {
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return;
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}
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float2 vPos = asfloat(particlesA.Load2((16u * index)));
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float2 vVel = asfloat(particlesA.Load2(((16u * index) + 8u)));
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float2 cMass = float2(0.0f, 0.0f);
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float2 cVel = float2(0.0f, 0.0f);
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float2 colVel = float2(0.0f, 0.0f);
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int cMassCount = 0;
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int cVelCount = 0;
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float2 pos = float2(0.0f, 0.0f);
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float2 vel = float2(0.0f, 0.0f);
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{
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for(uint i = 0u; (i < 5u); i = (i + 1u)) {
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if ((i == index)) {
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continue;
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}
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pos = asfloat(particlesA.Load2((16u * i))).xy;
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vel = asfloat(particlesA.Load2(((16u * i) + 8u))).xy;
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if ((distance(pos, vPos) < asfloat(params[0].y))) {
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cMass = (cMass + pos);
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cMassCount = (cMassCount + 1);
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}
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if ((distance(pos, vPos) < asfloat(params[0].z))) {
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colVel = (colVel - (pos - vPos));
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}
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if ((distance(pos, vPos) < asfloat(params[0].w))) {
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cVel = (cVel + vel);
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cVelCount = (cVelCount + 1);
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}
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}
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}
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if ((cMassCount > 0)) {
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cMass = ((cMass / float2(float(cMassCount), float(cMassCount))) - vPos);
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}
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if ((cVelCount > 0)) {
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cVel = (cVel / float2(float(cVelCount), float(cVelCount)));
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}
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vVel = (((vVel + (cMass * asfloat(params[1].x))) + (colVel * asfloat(params[1].y))) + (cVel * asfloat(params[1].z)));
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vVel = (normalize(vVel) * clamp(length(vVel), 0.0f, 0.100000001f));
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vPos = (vPos + (vVel * asfloat(params[0].x)));
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if ((vPos.x < -1.0f)) {
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vPos.x = 1.0f;
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}
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if ((vPos.x > 1.0f)) {
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vPos.x = -1.0f;
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}
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if ((vPos.y < -1.0f)) {
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vPos.y = 1.0f;
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}
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if ((vPos.y > 1.0f)) {
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vPos.y = -1.0f;
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}
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particlesB.Store2((16u * index), asuint(vPos));
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particlesB.Store2(((16u * index) + 8u), asuint(vVel));
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return;
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}
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