mirror of
https://github.com/smallmain/cocos-enhance-kit.git
synced 2025-01-15 07:21:07 +00:00
76 lines
2.0 KiB
PHP
76 lines
2.0 KiB
PHP
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precision highp float;
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#include <transform>
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#include <particle-common>
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#include <cc-local>
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in vec3 a_position; // center position
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in vec3 a_texCoord; // xy:vertex index,z:frame index
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in vec3 a_texCoord1; // size
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in vec3 a_texCoord2; // rotation
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in vec4 a_color;
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#if CC_USE_STRETCHED_BILLBOARD
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in vec3 a_color1; // velocity.x, velocity.y, velocity.z, scale
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#endif
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#if CC_USE_MESH
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in vec3 a_texCoord3; // mesh vertices
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in vec3 a_normal; // mesh normal
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in vec4 a_color1; // mesh color
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#endif
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vec4 lpvs_main() {
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vec3 compScale = scale.xyz * a_texCoord1;
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vec4 pos = vec4(a_position, 1);
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#if CC_USE_STRETCHED_BILLBOARD
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vec4 velocity = vec4(a_color1.xyz, 0);
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#endif
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#if !CC_USE_WORLD_SPACE
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// simulate in world space. apply cc_matWorld matrix on CPU side.
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pos = cc_matWorld * pos;
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#if CC_USE_STRETCHED_BILLBOARD
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velocity = cc_matWorld * velocity;
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#endif
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#endif
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#if !CC_USE_MESH
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vec2 cornerOffset = vec2((a_texCoord.xy - 0.5));
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#if CC_USE_BILLBOARD
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vec3 rotEuler = a_texCoord2;
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#elif CC_USE_STRETCHED_BILLBOARD
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vec3 rotEuler = vec3(0.);
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#else
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vec3 rotEuler = vec3(0., 0., a_texCoord2.z);
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#endif
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computeVertPos(pos, cornerOffset, quaternionFromEuler(rotEuler), compScale
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#if CC_USE_BILLBOARD || CC_USE_VERTICAL_BILLBOARD
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, cc_matViewInv
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#endif
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#if CC_USE_STRETCHED_BILLBOARD
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, cc_cameraPos.xyz
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, velocity
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, frameTile_velLenScale.z
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, frameTile_velLenScale.w
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, a_texCoord.x
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#endif
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);
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color = a_color;
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#else
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mat4 xformNoScale = matrixFromRT(quaternionFromEuler(a_texCoord2), pos.xyz);
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mat4 xform = matFromRTS(quaternionFromEuler(a_texCoord2), pos.xyz, compScale);
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pos = xform * vec4(a_texCoord3, 1);
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vec4 normal = xformNoScale * vec4(a_normal, 0);
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color = a_color * a_color1;
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#endif
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uv = computeUV(a_texCoord.z, a_texCoord.xy, frameTile_velLenScale.xy) * mainTiling_Offset.xy + mainTiling_Offset.zw;
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pos = cc_matViewProj * pos;
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return pos;
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}
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