1 files changed, 53 insertions, 0 deletions
diff --git a/engine/src/core-data/Common/MatDefs/Misc/SoftParticle.vert b/engine/src/core-data/Common/MatDefs/Misc/SoftParticle.vert
new file mode 100644
index 0000000..4f0dfd5
--- /dev/null
+++ b/engine/src/core-data/Common/MatDefs/Misc/SoftParticle.vert
@@ -0,0 +1,53 @@
+uniform mat4 g_WorldViewProjectionMatrix;
+
+attribute vec3 inPosition;
+attribute vec4 inColor;
+attribute vec4 inTexCoord;
+
+varying vec4 color;
+// z and w values in projection space
+varying vec2 projPos;
+varying vec2 vPos; // Position of the pixel in clip space
+
+
+
+#ifdef USE_TEXTURE
+varying vec4 texCoord;
+#endif
+
+#ifdef POINT_SPRITE
+uniform mat4 g_WorldViewMatrix;
+uniform mat4 g_WorldMatrix;
+uniform vec3 g_CameraPosition;
+uniform float m_Quadratic;
+const float SIZE_MULTIPLIER = 4.0;
+attribute float inSize;
+#endif
+
+void main(){
+    vec4 pos = vec4(inPosition, 1.0);
+
+    gl_Position = g_WorldViewProjectionMatrix * pos;
+    color = inColor;
+
+    projPos = gl_Position.zw;
+   // projPos.x = 0.5 * (projPos.x) + 0.5;
+
+    // Transforms the vPosition data to the range [0,1]
+    vPos = (gl_Position.xy / gl_Position.w + 1.0) / 2.0;
+
+    #ifdef USE_TEXTURE
+        texCoord = inTexCoord;
+    #endif
+
+    #ifdef POINT_SPRITE
+        vec4 worldPos = g_WorldMatrix * pos;
+        float d = distance(g_CameraPosition.xyz, worldPos.xyz);
+        gl_PointSize = max(1.0, (inSize * SIZE_MULTIPLIER * m_Quadratic) / d);
+
+        //vec4 worldViewPos = g_WorldViewMatrix * pos;
+        //gl_PointSize = (inSize * SIZE_MULTIPLIER * m_Quadratic)*100.0 / worldViewPos.z;
+
+        color.a *= min(gl_PointSize, 1.0);
+    #endif
+}
+\ No newline at end of file