Remove all references to stencil, fixes problems on iOS.

drivers/gles3/rasterizer_scene_gles3.cpp

@@ -3118,7 +3118,7 @@ void RasterizerSceneGLES3::_copy_screen(bool p_invalidate_color, bool p_invalida
 
 		GLenum attachments[2] = {
 			GL_COLOR_ATTACHMENT0,
-			GL_DEPTH_STENCIL_ATTACHMENT
+			GL_DEPTH_ATTACHMENT
 		};
 
 		glInvalidateFramebuffer(GL_FRAMEBUFFER, p_invalidate_depth ? 2 : 1, attachments);
@@ -4163,7 +4163,7 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
 
 		glColorMask(0, 0, 0, 0);
 		glClearDepth(1.0f);
-		glClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
+		glClear(GL_DEPTH_BUFFER_BIT);
 
 		render_list.clear();
 		_fill_render_list(p_cull_result, p_cull_count, true, false);
@@ -4288,7 +4288,7 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
 	}
 
 	if (!fb_cleared) {
-		glClearBufferfi(GL_DEPTH_STENCIL, 0, 1.0, 0);
+		glClearBufferfi(GL_DEPTH, 0, 1.0, 0);
 	}
 
 	Color clear_color(0, 0, 0, 0);
@@ -5167,12 +5167,15 @@ void RasterizerSceneGLES3::initialize() {
 
 		glGenTextures(1, &e.color);
 		glBindTexture(GL_TEXTURE_2D, e.color);
-#ifdef IPHONE_ENABLED
-		///@TODO ugly hack to get around iOS not supporting 32bit single channel floating point textures...
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_R16F, max_exposure_shrink_size, max_exposure_shrink_size, 0, GL_RED, GL_FLOAT, NULL);
-#else
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_R32F, max_exposure_shrink_size, max_exposure_shrink_size, 0, GL_RED, GL_FLOAT, NULL);
-#endif
+
+		if (storage->config.framebuffer_float_supported) {
+			glTexImage2D(GL_TEXTURE_2D, 0, GL_R32F, max_exposure_shrink_size, max_exposure_shrink_size, 0, GL_RED, GL_FLOAT, NULL);
+		} else if (storage->config.framebuffer_half_float_supported) {
+			glTexImage2D(GL_TEXTURE_2D, 0, GL_R16F, max_exposure_shrink_size, max_exposure_shrink_size, 0, GL_RED, GL_HALF_FLOAT, NULL);
+		} else {
+			glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB10_A2, max_exposure_shrink_size, max_exposure_shrink_size, 0, GL_RED, GL_UNSIGNED_INT_2_10_10_10_REV, NULL);
+		}
+
 		glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, e.color, 0);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

drivers/gles3/rasterizer_storage_gles3.cpp

@@ -101,6 +101,10 @@
 #define _EXT_COMPRESSED_RGB_BPTC_SIGNED_FLOAT 0x8E8E
 #define _EXT_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT 0x8E8F
 
+#ifndef GLES_OVER_GL
+#define glClearDepth glClearDepthf
+#endif
+
 #ifdef __EMSCRIPTEN__
 #include <emscripten/emscripten.h>
 
@@ -6836,8 +6840,9 @@ void RasterizerStorageGLES3::_render_target_allocate(RenderTarget *rt) {
 
 		glGenTextures(1, &rt->depth);
 		glBindTexture(GL_TEXTURE_2D, rt->depth);
-		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, rt->width, rt->height, 0,
-				GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NULL);
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, rt->width, rt->height, 0,
+				GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL);
+
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
@@ -6904,9 +6909,9 @@ void RasterizerStorageGLES3::_render_target_allocate(RenderTarget *rt) {
 		glGenRenderbuffers(1, &rt->buffers.depth);
 		glBindRenderbuffer(GL_RENDERBUFFER, rt->buffers.depth);
 		if (msaa == 0)
-			glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, rt->width, rt->height);
+			glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, rt->width, rt->height);
 		else
-			glRenderbufferStorageMultisample(GL_RENDERBUFFER, msaa, GL_DEPTH24_STENCIL8, rt->width, rt->height);
+			glRenderbufferStorageMultisample(GL_RENDERBUFFER, msaa, GL_DEPTH_COMPONENT24, rt->width, rt->height);
 
 		glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rt->buffers.depth);
 
@@ -7146,7 +7151,8 @@ void RasterizerStorageGLES3::_render_target_allocate(RenderTarget *rt) {
 				glViewport(0, 0, rt->effects.mip_maps[i].sizes[j].width, rt->effects.mip_maps[i].sizes[j].height);
 				glClearBufferfv(GL_COLOR, 0, zero);
 				if (used_depth) {
-					glClearBufferfi(GL_DEPTH_STENCIL, 0, 1.0, 0);
+					glClearDepth(1.0);
+					glClear(GL_DEPTH_BUFFER_BIT);
 				}
 			}