Merge pull request #20512 from karroffel/gles2-pr

add initial GLES2 3D renderer

1 files changed, 19 insertions, 5 deletions

diff --git a/drivers/gles2/shaders/cube_to_dp.glsl b/drivers/gles2/shaders/cube_to_dp.glsl
index 5ffc78c0b9..0b3f53a870 100644
--- a/drivers/gles2/shaders/cube_to_dp.glsl
+++ b/drivers/gles2/shaders/cube_to_dp.glsl
@@ -1,10 +1,17 @@
 [vertex]
 
+#ifdef USE_GLES_OVER_GL
+#define mediump
+#define highp
+#else
+precision mediump float;
+precision mediump int;
+#endif
 
-layout(location=0) in highp vec4 vertex_attrib;
-layout(location=4) in vec2 uv_in;
+attribute highp vec4 vertex_attrib; // attrib:0
+attribute vec2 uv_in; // attrib:4
 
-out vec2 uv_interp;
+varying vec2 uv_interp;
 
 void main() {
 
@@ -14,9 +21,16 @@ void main() {
 
 [fragment]
 
+#ifdef USE_GLES_OVER_GL
+#define mediump
+#define highp
+#else
+precision mediump float;
+precision mediump int;
+#endif
 
 uniform highp samplerCube source_cube; //texunit:0
-in vec2 uv_interp;
+varying vec2 uv_interp;
 
 uniform bool z_flip;
 uniform highp float z_far;
@@ -49,7 +63,7 @@ void main() {
 	}
 
 	//normal = normalize(vec3( uv_interp * 2.0 - 1.0, 1.0 ));
-	float depth = texture(source_cube,normal).r;
+	float depth = textureCube(source_cube,normal).r;
 
 	// absolute values for direction cosines, bigger value equals closer to basis axis
 	vec3 unorm = abs(normal);