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modules/wallpaper-engine/shaders/genericparticle.vert

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+
+#include "common_particles.h"
+
+// Declare dynamic attributes for all combinations
+attribute vec3 a_Position;
+attribute vec4 a_TexCoordVec4;
+attribute vec4 a_Color;
+varying vec4 v_Color;
+
+#if THICKFORMAT
+attribute vec4 a_TexCoordVec4C1;
+#endif
+
+#if GS_ENABLED || HLSL_GS40
+
+varying vec3 v_Rotation;
+
+#if THICKFORMAT
+varying vec4 v_VelocityLifetime;
+#endif // THICKFORMAT
+
+#else // No geometry shaders
+
+attribute vec2 a_TexCoordC2;
+
+#if SPRITESHEET
+varying vec4 v_TexCoord;
+varying float v_TexCoordBlend;
+#else
+varying vec2 v_TexCoord;
+#endif // SPRITESHEET
+
+#if REFRACT
+varying vec3 v_ScreenCoord;
+varying vec4 v_ScreenTangents;
+#endif // REFRACT
+
+#if FOG_DIST || FOG_HEIGHT
+uniform mat4 g_ModelMatrix;
+varying vec4 v_ViewDir;
+#endif
+
+#endif // GS_ENABLED
+
+void main() {
+
+	// Prepare input layout
+#if GS_ENABLED || HLSL_GS40
+#define in_ParticleRotation (a_TexCoordVec4.xyz)
+#else
+#define in_ParticleRotation vec3(a_TexCoordC2.xy, a_TexCoordVec4.z)
+#endif
+
+#define in_ParticleSize (a_TexCoordVec4.w)
+#define in_ParticleVelocity (a_TexCoordVec4C1.xyz)
+#define in_ParticleLifeTime (a_TexCoordVec4C1.w)
+
+#if SPRITESHEET
+	float textureRatio = g_RenderVar1.w;
+#else
+	float textureRatio = g_Texture0Resolution.y / g_Texture0Resolution.x;
+#endif
+
+	// Prepare geometry shader input
+	// or compute final vertex position
+#if GS_ENABLED || HLSL_GS40
+
+#if THICKFORMAT
+	v_VelocityLifetime = vec4(in_ParticleVelocity, frac(in_ParticleLifeTime));
+#endif
+	v_Rotation = in_ParticleRotation;
+	gl_Position = vec4(a_Position, in_ParticleSize);
+
+#else // No geometry shaders
+
+	vec3 right, up;
+	mat3 mRotation;
+#if TRAILRENDERER
+	mRotation = CAST3X3(1.0);
+	ComputeParticleTrailTangents(a_Position, in_ParticleVelocity, right, up);
+#else
+	ComputeParticleTangents(in_ParticleRotation, mRotation, right, up);
+#endif
+
+	vec3 position = ComputeParticlePosition(a_TexCoordVec4.xy, textureRatio, vec4(a_Position.xyz, in_ParticleSize), right, up);
+	gl_Position = mul(vec4(position, 1.0), g_ModelViewProjectionMatrix);
+
+	v_TexCoord.xy = a_TexCoordVec4.xy;
+#if SPRITESHEET
+	vec2 uvOffsets;
+	ComputeSpriteFrame(frac(in_ParticleLifeTime), v_TexCoord, uvOffsets, v_TexCoordBlend);
+	uvOffsets *= step(0.001, a_TexCoordVec4.xy);
+	v_TexCoord += uvOffsets.xyxy;
+#endif
+
+#if FOG_DIST || FOG_HEIGHT
+	vec3 worldPos = mul(vec4(position, 1.0), g_ModelMatrix).xyz;
+	v_ViewDir.xyz = g_EyePosition - worldPos.xyz;
+	v_ViewDir.w = worldPos.y;
+#endif
+
+#endif
+
+	v_Color = a_Color;
+
+#if GS_ENABLED || HLSL_GS40
+#else
+#if REFRACT
+	ComputeScreenRefractionTangents(gl_Position.xyw, mRotation, v_ScreenCoord, v_ScreenTangents);
+#endif
+#endif
+}