nuclear@0: #include "object.h"
nuclear@0: #include "opengl.h"
nuclear@0: #include "shadow.h"
nuclear@2: #include "shader.h"
nuclear@0: 
nuclear@0: Material::Material()
nuclear@0: 	: diffuse(1, 1, 1), specular(0, 0, 0)
nuclear@0: {
nuclear@0: 	shininess = 60.0;
nuclear@0: 	alpha = 1.0;
nuclear@0: }
nuclear@0: 
nuclear@0: RenderOps::RenderOps()
nuclear@0: {
nuclear@0: 	zwrite = true;
nuclear@0: 	cast_shadows = true;
nuclear@0: 	transparent = false;
nuclear@0: }
nuclear@0: 
nuclear@0: void RenderOps::setup() const
nuclear@0: {
nuclear@0: 	if(!zwrite) {
nuclear@0: 		glDepthMask(0);
nuclear@0: 	}
nuclear@0: 	if(transparent) {
nuclear@0: 		glEnable(GL_BLEND);
nuclear@0: 		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
nuclear@0: 	} else {
nuclear@0: 		glDisable(GL_BLEND);
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@0: Object::Object()
nuclear@0: {
nuclear@0: 	mesh = 0;
nuclear@0: 	tex = 0;
nuclear@0: 	sdr = 0;
nuclear@0: }
nuclear@0: 
nuclear@0: Object::~Object()
nuclear@0: {
nuclear@0: 	delete mesh;
nuclear@0: }
nuclear@0: 
nuclear@0: Matrix4x4 &Object::xform()
nuclear@0: {
nuclear@0: 	return matrix;
nuclear@0: }
nuclear@0: 
nuclear@0: const Matrix4x4 &Object::xform() const
nuclear@0: {
nuclear@0: 	return matrix;
nuclear@0: }
nuclear@0: 
nuclear@0: Matrix4x4 &Object::tex_xform()
nuclear@0: {
nuclear@0: 	return tex_matrix;
nuclear@0: }
nuclear@0: 
nuclear@0: const Matrix4x4 &Object::tex_xform() const
nuclear@0: {
nuclear@0: 	return tex_matrix;
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::set_mesh(Mesh *m)
nuclear@0: {
nuclear@0: 	this->mesh = m;
nuclear@0: }
nuclear@0: 
nuclear@0: Mesh *Object::get_mesh() const
nuclear@0: {
nuclear@0: 	return mesh;
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::set_texture(unsigned int tex)
nuclear@0: {
nuclear@0: 	this->tex = tex;
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::set_shader(unsigned int sdr)
nuclear@0: {
nuclear@0: 	if(GLEW_ARB_vertex_shader && GLEW_ARB_fragment_shader) {
nuclear@0: 		this->sdr = sdr;
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@0: unsigned int Object::get_shader() const
nuclear@0: {
nuclear@0: 	return sdr;
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::draw() const
nuclear@0: {
nuclear@0: 	if(!mesh) return;
nuclear@0: 
nuclear@0: 	if(shadow_pass && !rop.cast_shadows) {
nuclear@0: 		return;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	glPushAttrib(GL_ENABLE_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@0: 	rop.setup();
nuclear@0: 
nuclear@0: 	if(glcaps.shaders) {
nuclear@0: 		if(sdr) {
nuclear@0: 			if(!shadow_pass) {
nuclear@2: 				::set_shader(sdr);
nuclear@0: 			}
nuclear@0: 		} else {
nuclear@2: 			::set_shader(0);
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	if(tex) {
nuclear@0: 		glBindTexture(GL_TEXTURE_2D, tex);
nuclear@0: 		glEnable(GL_TEXTURE_2D);
nuclear@0: 
nuclear@0: 		glMatrixMode(GL_TEXTURE);
nuclear@0: 		glPushMatrix();
nuclear@0: 		glLoadTransposeMatrixf(tex_matrix[0]);
nuclear@0: 	} else {
nuclear@0: 		glDisable(GL_TEXTURE_2D);
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	glMatrixMode(GL_MODELVIEW);
nuclear@0: 	glPushMatrix();
nuclear@0: 	glMultTransposeMatrixf(matrix[0]);
nuclear@0: 
nuclear@0: 	float dcol[] = {mtl.diffuse.x, mtl.diffuse.y, mtl.diffuse.z, mtl.alpha};
nuclear@0: 	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, dcol);
nuclear@0: 	float scol[] = {mtl.specular.x, mtl.specular.y, mtl.specular.z, 1.0f};
nuclear@0: 	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, scol);
nuclear@0: 	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, mtl.shininess);
nuclear@0: 
nuclear@0: 	mesh->draw();
nuclear@0: 
nuclear@0: 	if(tex) {
nuclear@0: 		glDisable(GL_TEXTURE_2D);
nuclear@0: 
nuclear@0: 		glMatrixMode(GL_TEXTURE);
nuclear@0: 		glPopMatrix();
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	if(sdr) {
nuclear@2: 		::set_shader(0);
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	glMatrixMode(GL_MODELVIEW);
nuclear@0: 	glPopMatrix();
nuclear@0: 
nuclear@0: 	glPopAttrib();
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::draw_wire(const Vector4 &col) const
nuclear@0: {
nuclear@0: 	if(shadow_pass) return;
nuclear@0: 
nuclear@0: 	glPushAttrib(GL_ENABLE_BIT);
nuclear@0: 	glDisable(GL_LIGHTING);
nuclear@0: 	glUseProgram(0);
nuclear@0: 
nuclear@0: 	glMatrixMode(GL_MODELVIEW);
nuclear@0: 	glPushMatrix();
nuclear@0: 	glMultTransposeMatrixf(matrix[0]);
nuclear@0: 
nuclear@0: 	glColor4f(col.x, col.y, col.z, col.w);
nuclear@0: 	mesh->draw_wire();
nuclear@0: 
nuclear@0: 	glPopMatrix();
nuclear@0: 	glPopAttrib();
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::draw_vertices(const Vector4 &col) const
nuclear@0: {
nuclear@0: 	glPushAttrib(GL_ENABLE_BIT);
nuclear@0: 	glDisable(GL_LIGHTING);
nuclear@0: 	glUseProgram(0);
nuclear@0: 
nuclear@0: 	glMatrixMode(GL_MODELVIEW);
nuclear@0: 	glPushMatrix();
nuclear@0: 	glMultTransposeMatrixf(matrix[0]);
nuclear@0: 
nuclear@0: 	glColor4f(col.x, col.y, col.z, col.w);
nuclear@0: 	mesh->draw_vertices();
nuclear@0: 
nuclear@0: 	glPopMatrix();
nuclear@0: 	glPopAttrib();
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::draw_normals(float len, const Vector4 &col) const
nuclear@0: {
nuclear@2: 	int cur_sdr;
nuclear@2: 	glGetIntegerv(GL_CURRENT_PROGRAM, &cur_sdr);
nuclear@2: 	glUseProgram(0);
nuclear@2: 
nuclear@0: 	glPushAttrib(GL_ENABLE_BIT);
nuclear@0: 	glDisable(GL_LIGHTING);
nuclear@0: 
nuclear@0: 	glMatrixMode(GL_MODELVIEW);
nuclear@0: 	glPushMatrix();
nuclear@0: 	glMultTransposeMatrixf(matrix[0]);
nuclear@0: 
nuclear@0: 	glColor4f(col.x, col.y, col.z, col.w);
nuclear@0: 	mesh->set_vis_vecsize(len);
nuclear@0: 	mesh->draw_normals();
nuclear@0: 
nuclear@0: 	glPopMatrix();
nuclear@0: 	glPopAttrib();
nuclear@2: 
nuclear@2: 	glUseProgram(cur_sdr);
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::draw_tangents(float len, const Vector4 &col) const
nuclear@0: {
nuclear@0: 	glPushAttrib(GL_ENABLE_BIT);
nuclear@0: 	glDisable(GL_LIGHTING);
nuclear@0: 
nuclear@0: 	glMatrixMode(GL_MODELVIEW);
nuclear@0: 	glPushMatrix();
nuclear@0: 	glMultTransposeMatrixf(matrix[0]);
nuclear@0: 
nuclear@0: 	glColor4f(col.x, col.y, col.z, col.w);
nuclear@0: 	mesh->set_vis_vecsize(len);
nuclear@0: 	mesh->draw_tangents();
nuclear@0: 
nuclear@0: 	glPopMatrix();
nuclear@0: 	glPopAttrib();
nuclear@0: }
nuclear@0: 
nuclear@0: bool Object::intersect(const Ray &ray, HitPoint *hit) const
nuclear@0: {
nuclear@0: 	return false;	// TODO
nuclear@0: }