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author | Matthias Schiffer <matthias@gamezock.de> | 2009-12-15 19:37:12 +0100 |
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committer | Matthias Schiffer <matthias@gamezock.de> | 2009-12-15 19:37:12 +0100 |
commit | d9f44af7aee41a111a3d7427d8735bc821f1824f (patch) | |
tree | 4814f3dea17eefac6a06d0c6af0da31d87488ff6 /src/Renderer.cpp | |
parent | a4fa46a4fda967348ea18961c177330491bdb953 (diff) | |
download | zoom++-d9f44af7aee41a111a3d7427d8735bc821f1824f.tar zoom++-d9f44af7aee41a111a3d7427d8735bc821f1824f.zip |
Moved source files to src; sort triangles by texture.
Diffstat (limited to 'src/Renderer.cpp')
-rw-r--r-- | src/Renderer.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/Renderer.cpp b/src/Renderer.cpp new file mode 100644 index 0000000..ad4849b --- /dev/null +++ b/src/Renderer.cpp @@ -0,0 +1,69 @@ +/* + * Renderer.cpp + * + * Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de> + * + * This program is free software: you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by the + * Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * See the GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License along + * with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "Renderer.h" + +namespace Zoom { + +void Renderer::render(const BSPTree &tree) { + vmml::mat4f transform, inverseTransform; + glGetFloatv(GL_MODELVIEW_MATRIX, transform.array); + + transform.inverse(inverseTransform); + + vmml::vec3f viewPoint = inverseTransform*vmml::vec3f::ZERO; + + glBegin(GL_TRIANGLES); + tree.visit(renderVisitor, viewPoint); + glEnd(); + +} + +void Renderer::renderTriangle(const Triangle &t) { + glColor4fv(t.getColor().array); + + if(t.getTexture() != activeTexture) { + glEnd(); + useTexture(t.getTexture()); + glBegin(GL_TRIANGLES); + } + + for(int i = 0; i < 3; ++i) { + glTexCoord2fv(t.getTexCoords(i).array); + glNormal3fv(t.getNormal(i).array); + glVertex3fv(t.getVertex(i).array); + } +} + +void Renderer::useTexture(unsigned texture) { + if(texture) { + glBindTexture(GL_TEXTURE_2D, texture); + + if(activeTexture) { + glEnable(GL_TEXTURE_2D); + } + } + else { + glDisable(GL_TEXTURE_2D); + } + + activeTexture = texture; +} + +} |