Merge pull request #36174 from akien-mga/byebye-openghell-3

Remove obsolete GLES3 backend

1 files changed, 0 insertions, 174 deletions

diff --git a/drivers/gles3/shaders/subsurf_scattering.glsl b/drivers/gles3/shaders/subsurf_scattering.glsl
deleted file mode 100644
index f40fb3a244..0000000000
--- a/drivers/gles3/shaders/subsurf_scattering.glsl
+++ /dev/null
@@ -1,174 +0,0 @@
-/* clang-format off */
-[vertex]
-
-layout(location = 0) in highp vec4 vertex_attrib;
-/* clang-format on */
-layout(location = 4) in vec2 uv_in;
-
-out vec2 uv_interp;
-
-void main() {
-
-	uv_interp = uv_in;
-	gl_Position = vertex_attrib;
-}
-
-/* clang-format off */
-[fragment]
-
-//#define QUALIFIER uniform // some guy on the interweb says it may be faster with this
-#define QUALIFIER const
-
-#ifdef USE_25_SAMPLES
-const int kernel_size = 25;
-/* clang-format on */
-QUALIFIER vec2 kernel[25] = vec2[](
-		vec2(0.530605, 0.0),
-		vec2(0.000973794, -3.0),
-		vec2(0.00333804, -2.52083),
-		vec2(0.00500364, -2.08333),
-		vec2(0.00700976, -1.6875),
-		vec2(0.0094389, -1.33333),
-		vec2(0.0128496, -1.02083),
-		vec2(0.017924, -0.75),
-		vec2(0.0263642, -0.520833),
-		vec2(0.0410172, -0.333333),
-		vec2(0.0493588, -0.1875),
-		vec2(0.0402784, -0.0833333),
-		vec2(0.0211412, -0.0208333),
-		vec2(0.0211412, 0.0208333),
-		vec2(0.0402784, 0.0833333),
-		vec2(0.0493588, 0.1875),
-		vec2(0.0410172, 0.333333),
-		vec2(0.0263642, 0.520833),
-		vec2(0.017924, 0.75),
-		vec2(0.0128496, 1.02083),
-		vec2(0.0094389, 1.33333),
-		vec2(0.00700976, 1.6875),
-		vec2(0.00500364, 2.08333),
-		vec2(0.00333804, 2.52083),
-		vec2(0.000973794, 3.0));
-#endif //USE_25_SAMPLES
-
-#ifdef USE_17_SAMPLES
-const int kernel_size = 17;
-QUALIFIER vec2 kernel[17] = vec2[](
-		vec2(0.536343, 0.0),
-		vec2(0.00317394, -2.0),
-		vec2(0.0100386, -1.53125),
-		vec2(0.0144609, -1.125),
-		vec2(0.0216301, -0.78125),
-		vec2(0.0347317, -0.5),
-		vec2(0.0571056, -0.28125),
-		vec2(0.0582416, -0.125),
-		vec2(0.0324462, -0.03125),
-		vec2(0.0324462, 0.03125),
-		vec2(0.0582416, 0.125),
-		vec2(0.0571056, 0.28125),
-		vec2(0.0347317, 0.5),
-		vec2(0.0216301, 0.78125),
-		vec2(0.0144609, 1.125),
-		vec2(0.0100386, 1.53125),
-		vec2(0.00317394, 2.0));
-#endif //USE_17_SAMPLES
-
-#ifdef USE_11_SAMPLES
-const int kernel_size = 11;
-QUALIFIER vec2 kernel[11] = vec2[](
-		vec2(0.560479, 0.0),
-		vec2(0.00471691, -2.0),
-		vec2(0.0192831, -1.28),
-		vec2(0.03639, -0.72),
-		vec2(0.0821904, -0.32),
-		vec2(0.0771802, -0.08),
-		vec2(0.0771802, 0.08),
-		vec2(0.0821904, 0.32),
-		vec2(0.03639, 0.72),
-		vec2(0.0192831, 1.28),
-		vec2(0.00471691, 2.0));
-#endif //USE_11_SAMPLES
-
-uniform float max_radius;
-uniform float camera_z_far;
-uniform float camera_z_near;
-uniform float unit_size;
-uniform vec2 dir;
-in vec2 uv_interp;
-
-uniform sampler2D source_diffuse; //texunit:0
-uniform sampler2D source_sss; //texunit:1
-uniform sampler2D source_depth; //texunit:2
-
-layout(location = 0) out vec4 frag_color;
-
-void main() {
-
-	float strength = texture(source_sss, uv_interp).r;
-	strength *= strength; //stored as sqrt
-
-	// Fetch color of current pixel:
-	vec4 base_color = texture(source_diffuse, uv_interp);
-
-	if (strength > 0.0) {
-
-		// Fetch linear depth of current pixel:
-		float depth = texture(source_depth, uv_interp).r * 2.0 - 1.0;
-#ifdef USE_ORTHOGONAL_PROJECTION
-		depth = ((depth + (camera_z_far + camera_z_near) / (camera_z_far - camera_z_near)) * (camera_z_far - camera_z_near)) / 2.0;
-		float scale = unit_size; //remember depth is negative by default in OpenGL
-#else
-		depth = 2.0 * camera_z_near * camera_z_far / (camera_z_far + camera_z_near - depth * (camera_z_far - camera_z_near));
-		float scale = unit_size / depth; //remember depth is negative by default in OpenGL
-#endif
-
-		// Calculate the final step to fetch the surrounding pixels:
-		vec2 step = max_radius * scale * dir;
-		step *= strength; // Modulate it using the alpha channel.
-		step *= 1.0 / 3.0; // Divide by 3 as the kernels range from -3 to 3.
-
-		// Accumulate the center sample:
-		vec3 color_accum = base_color.rgb;
-		color_accum *= kernel[0].x;
-#ifdef ENABLE_STRENGTH_WEIGHTING
-		float color_weight = kernel[0].x;
-#endif
-
-		// Accumulate the other samples:
-		for (int i = 1; i < kernel_size; i++) {
-			// Fetch color and depth for current sample:
-			vec2 offset = uv_interp + kernel[i].y * step;
-			vec3 color = texture(source_diffuse, offset).rgb;
-
-#ifdef ENABLE_FOLLOW_SURFACE
-			// If the difference in depth is huge, we lerp color back to "colorM":
-			float depth_cmp = texture(source_depth, offset).r * 2.0 - 1.0;
-
-#ifdef USE_ORTHOGONAL_PROJECTION
-			depth_cmp = ((depth_cmp + (camera_z_far + camera_z_near) / (camera_z_far - camera_z_near)) * (camera_z_far - camera_z_near)) / 2.0;
-#else
-			depth_cmp = 2.0 * camera_z_near * camera_z_far / (camera_z_far + camera_z_near - depth_cmp * (camera_z_far - camera_z_near));
-#endif
-
-			float s = clamp(300.0f * scale * max_radius * abs(depth - depth_cmp), 0.0, 1.0);
-			color = mix(color, base_color.rgb, s);
-#endif
-
-			// Accumulate:
-			color *= kernel[i].x;
-
-#ifdef ENABLE_STRENGTH_WEIGHTING
-			float color_s = texture(source_sss, offset).r;
-			color_weight += color_s * kernel[i].x;
-			color *= color_s;
-#endif
-			color_accum += color;
-		}
-
-#ifdef ENABLE_STRENGTH_WEIGHTING
-		color_accum /= color_weight;
-#endif
-		frag_color = vec4(color_accum, base_color.a); //keep alpha (used for SSAO)
-	} else {
-		frag_color = base_color;
-	}
-}