Implement TextureMaterial properly for the new setup.

game_scene.cpp

@@ -120,7 +120,7 @@ GameScene::GameScene() {
 
 	_font_test_sprite = memnew(Sprite);
 
-	_font_test_mat = memnew(TextureMaterial2D());
+	_font_test_mat = memnew(FontMaterial());
 	_font_test_mat->texture = _font->get_texture().ptr();
 	_font_test_sprite->mesh_instance->material = _font_test_mat;
 	_font_test_sprite->width = _font->get_atlas_width();

game_scene.h

@@ -40,7 +40,7 @@ public:
 
 	Ref<Font> _font;
 	Sprite *_font_test_sprite;
-	TextureMaterial2D *_font_test_mat;
+	FontMaterial *_font_test_mat;
 
 	Ref<Mesh> _font_test_mesh;
 	MeshInstance2D *_font_test_mi;

sfw/render_core/font_material.h

@@ -2,114 +2,97 @@
 #define FONT_MATERIAL_H
 
 #include "render_core/material.h"
-
-#include "core/color.h"
+#include "render_core/texture.h"
 
 #include "render_core/render_state.h"
 
 class FontMaterial : public Material {
 public:
 	int get_material_id() {
-		return 10;
+		return 11;
 	}
 
 	void bind_uniforms() {
-		set_uniform(projection_matrix_location, RenderState::projection_matrix_3d);
-		set_uniform(model_view_matrix_location, RenderState::model_view_matrix_3d);
+		set_uniform(projection_matrix_location, RenderState::projection_matrix_2d);
+		set_uniform(model_view_matrix_location, RenderState::model_view_matrix_2d);
 
-		glUniform4f(tri_color_uniform_location, color.r, color.g, color.b, color.a);
+		if (texture) {
+			glActiveTexture(GL_TEXTURE0);
+			glBindTexture(GL_TEXTURE_2D, texture->get_gl_texture());
+			glUniform1i(texture_location, 0);
+		}
 	}
 
 	void setup_uniforms() {
 		projection_matrix_location = get_uniform("u_proj_matrix");
 		model_view_matrix_location = get_uniform("u_model_view_matrix");
 
-		tri_color_uniform_location = get_uniform("fragment_color");
+		texture_location = get_uniform("u_texture");
 	}
 
-	GLuint get_program() {
-		return shader->program;
+	void unbind() {
+		glDisable(GL_TEXTURE_2D);
+	}
+
+	void setup_state() {
+		glEnable(GL_TEXTURE_2D);
 	}
 
 	const GLchar **get_vertex_shader_source() {
 		static const GLchar *vertex_shader_source[] = {
-			"\
-			\n\
-			in Vector2 vertexPosition;\n\
-			in vec4 instanceGlyph;\n\
-			\n\
-			uniform sampler2D sampler_font;\n\
-			uniform sampler2D sampler_meta;\n\
-			\n\
-			uniform float offset_firstline; // ascent - descent - linegap/2\n\
-			uniform float scale_factor;     // scaling factor proportional to font size\n\
-			uniform Vector2 string_offset;     // offset of upper-left corner\n\
-			\n\
-			uniform Vector2 res_meta;   // 96x2 \n\
-			uniform Vector2 res_bitmap; // 512x256\n\
-			uniform Vector2 resolution; // screen resolution\n\
-			\n\
-			out Vector2 uv;\n\
-			out float color_index; // for syntax highlighting\n\
-			\n\
-			void main() { \
-				// (xoff, yoff, xoff2, yoff2), from second row of texture\n\
-				vec4 q2 = texture(sampler_meta, Vector2((instanceGlyph.z + 0.5)/res_meta.x, 0.75))*vec4(res_bitmap, res_bitmap);\n\
-			\n\
-				Vector2 p = vertexPosition*(q2.zw - q2.xy) + q2.xy; // offset and scale it properly relative to baseline\n\
-				p *= Vector2(1.0, -1.0);                            // flip y, since texture is upside-down\n\
-				p.y -= offset_firstline;                         // make sure the upper-left corner of the string is in the upper-left corner of the screen\n\
-				p *= scale_factor;                               // scale relative to font size\n\
-				p += instanceGlyph.xy + string_offset;           // move glyph into the right position\n\
-				p *= 2.0/resolution;                             // to NDC\n\
-				p += Vector2(-1.0, 1.0);                            // move to upper-left corner instead of center\n\
-			\n\
-				gl_Position = vec4(p, 0.0, 1.0);\n\
-			\n\
-				// (x0, y0, x1-x0, y1-y0), from first row of texture\n\
-				vec4 q = texture(sampler_meta, Vector2((instanceGlyph.z + 0.5)/res_meta.x, 0.25));\n\
-			\n\
-				// send the correct uv's in the font atlas to the fragment shader\n\
-				uv = q.xy + vertexPosition*q.zw;\n\
-				color_index = instanceGlyph.w;\n\
-			}\n"
+			"uniform mat4 u_proj_matrix;\n"
+			"uniform mat4 u_model_view_matrix;\n"
+			"\n"
+			"attribute vec4 a_position;\n"
+			"attribute vec2 a_uv;\n"
+			"\n"
+			"varying vec2 v_uv;\n"
+			"\n"
+			"void main() {\n"
+			"  v_uv = a_uv;\n"
+			"  gl_Position = u_proj_matrix * u_model_view_matrix * a_position;\n"
+			"}"
 		};
 
 		return vertex_shader_source;
 	}
 
-	const GLchar **
-	get_fragment_shader_source() {
+	const GLchar **get_fragment_shader_source() {
 		static const GLchar *fragment_shader_source[] = {
-			"\
-			\n\
-			in Vector2 uv;\n\
-			in float color_index;\n\
-			\n\
-			uniform sampler2D sampler_font;\n\
-			uniform sampler1D sampler_colors;\n\
-			uniform float num_colors;\n\
-			\n\
-			out vec4 outColor;\n\
-			\n\
-			void main() {\
-				vec4 col = texture(sampler_colors, (color_index+0.5)/num_colors);\n\
-				float s = texture(sampler_font, uv).r;\n\
-				outColor = vec4(col.rgb, s*col.a);\n\
-			}\n"
+			"precision mediump float;\n"
+			"\n"
+			"uniform sampler2D u_texture;\n"
+			"\n"
+			"varying vec2 v_uv;\n"
+			"\n"
+			"void main() {\n"
+			"  vec4 col = texture2D(u_texture, v_uv);\n"
+			"\n"
+			"  if (col.r < 0.5) {\n"
+			"    discard;\n"
+			"  }\n"
+			"\n"
+			"  gl_FragColor = col;\n"
+			"}"
 		};
 
 		return fragment_shader_source;
 	}
 
 	FontMaterial() {
+		projection_matrix_location = 0;
+		model_view_matrix_location = 0;
+
+		texture_location = 0;
+		texture = NULL;
 	}
 
 	GLint projection_matrix_location;
 	GLint model_view_matrix_location;
 
-	GLint tri_color_uniform_location;
-	Color color;
+	GLint texture_location;
+
+	Texture *texture;
 };
 
 #endif // TEXT_MATERIAL_H

sfw/render_core/texture_material_2d.h

@@ -79,8 +79,7 @@ public:
 		return fragment_shader_source;
 	}
 
-	TextureMaterial2D() :
-			Material() {
+	TextureMaterial2D() {
 		projection_matrix_location = 0;
 		model_view_matrix_location = 0;