Add Particle Shader Userdata

* Adds optional vec4 USERDATA1 .. USERDATA6 to particles, allowing to store custom data.
* This data is allocated on demand, so shaders that do not use it do not cost more.

1 files changed, 18 insertions, 18 deletions

diff --git a/servers/rendering/renderer_rd/shaders/particles_copy.glsl b/servers/rendering/renderer_rd/shaders/particles_copy.glsl
index bb11e4c78d..b991880cd9 100644
--- a/servers/rendering/renderer_rd/shaders/particles_copy.glsl
+++ b/servers/rendering/renderer_rd/shaders/particles_copy.glsl
@@ -16,6 +16,9 @@ struct ParticleData {
 	uint flags;
 	vec4 color;
 	vec4 custom;
+#ifdef USERDATA_COUNT
+	vec4 userdata[USERDATA_COUNT];
+#endif
 };
 
 layout(set = 0, binding = 1, std430) restrict readonly buffer Particles {
@@ -57,7 +60,7 @@ layout(push_constant, std430) uniform Params {
 	bool order_by_lifetime;
 	uint lifetime_split;
 	bool lifetime_reverse;
-	uint pad;
+	bool copy_mode_2d;
 }
 params;
 
@@ -201,25 +204,22 @@ void main() {
 		txform = mat4(vec4(0.0), vec4(0.0), vec4(0.0), vec4(0.0)); //zero scale, becomes invisible
 	}
 
-#ifdef MODE_2D
-
-	uint write_offset = gl_GlobalInvocationID.x * (2 + 1 + 1); //xform + color + custom
+	if (params.copy_mode_2d) {
+		uint write_offset = gl_GlobalInvocationID.x * (2 + 1 + 1); //xform + color + custom
 
-	instances.data[write_offset + 0] = txform[0];
-	instances.data[write_offset + 1] = txform[1];
-	instances.data[write_offset + 2] = particles.data[particle].color;
-	instances.data[write_offset + 3] = particles.data[particle].custom;
-
-#else
-
-	uint write_offset = gl_GlobalInvocationID.x * (3 + 1 + 1); //xform + color + custom
+		instances.data[write_offset + 0] = txform[0];
+		instances.data[write_offset + 1] = txform[1];
+		instances.data[write_offset + 2] = particles.data[particle].color;
+		instances.data[write_offset + 3] = particles.data[particle].custom;
+	} else {
+		uint write_offset = gl_GlobalInvocationID.x * (3 + 1 + 1); //xform + color + custom
 
-	instances.data[write_offset + 0] = txform[0];
-	instances.data[write_offset + 1] = txform[1];
-	instances.data[write_offset + 2] = txform[2];
-	instances.data[write_offset + 3] = particles.data[particle].color;
-	instances.data[write_offset + 4] = particles.data[particle].custom;
-#endif //MODE_2D
+		instances.data[write_offset + 0] = txform[0];
+		instances.data[write_offset + 1] = txform[1];
+		instances.data[write_offset + 2] = txform[2];
+		instances.data[write_offset + 3] = particles.data[particle].color;
+		instances.data[write_offset + 4] = particles.data[particle].custom;
+	}
 
 #endif
 }