119 lines
2.7 KiB
C++
119 lines
2.7 KiB
C++
#include "previewmaterial.h"
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#include <cmath>
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#include <QPainter>
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#include "tools.h"
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#include "SoftwareRenderer.h"
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#include "BasePreview.h"
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#include "CameraDefinition.h"
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#include "ColorProfile.h"
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#include "LightComponent.h"
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#include "LightingManager.h"
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/***** Shared renderer *****/
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MaterialPreviewRenderer::MaterialPreviewRenderer(SurfaceMaterial* material)
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{
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_light = new LightComponent;
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_light->color.r = 3.0;
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_light->color.g = 3.0;
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_light->color.b = 3.0;
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_light->direction.x = -0.5;
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_light->direction.y = -0.5;
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_light->direction.z = -0.5;
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_light->direction = _light->direction.normalize();
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_light->altered = 0;
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_light->reflection = 1.0;
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_material = material;
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render_camera->setLocation(Vector3(0.0, 0.0, 10.0));
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_color_profile = new ColorProfile;
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_color_profile->setToneMapping(ColorProfile::TONE_MAPPING_UNCHARTED, 1.0);
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}
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MaterialPreviewRenderer::~MaterialPreviewRenderer()
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{
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delete _color_profile;
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delete _light;
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}
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void MaterialPreviewRenderer::bindEvent(BasePreview* preview)
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{
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preview->configScaling(0.05, 2.0, 0.05, 2.0);
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}
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Color MaterialPreviewRenderer::getColor2D(double x, double y, double)
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{
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double dist = sqrt(x * x + y * y);
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Vector3 point;
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Color color;
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if (dist >= 1.0)
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{
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return COLOR_TRANSPARENT;
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}
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else
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{
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point.x = x;
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point.y = -y;
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if (dist == 0)
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{
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point.z = 1.0;
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}
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else
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{
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point.z = fabs(acos(dist));
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}
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point = point.normalize();
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color = getLightingManager()->applyFinalComponent(*_light, getCameraLocation(point), point, point, *_material);
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if (dist > 0.95)
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{
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color.a = (1.0 - dist) / 0.05;
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}
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return _color_profile->apply(color);
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}
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}
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/***** Small static preview *****/
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SmallMaterialPreview::SmallMaterialPreview(QWidget* parent, SurfaceMaterial* material):
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QWidget(parent),
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_renderer(material)
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{
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}
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Color SmallMaterialPreview::getColor(double x, double y)
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{
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return _renderer.getColor2D(x, y, 1.0);
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}
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void SmallMaterialPreview::paintEvent(QPaintEvent*)
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{
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QPainter painter(this);
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int width = this->width();
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int height = this->height();
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double factor, dx, dy;
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if (width > height)
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{
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factor = 2.0 / (double) height;
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}
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else
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{
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factor = 2.0 / (double) width;
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}
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dx = factor * (double) width / 2.0;
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dy = factor * (double) height / 2.0;
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for (int x = 0; x < width; x++)
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{
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for (int y = 0; y < height; y++)
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{
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painter.setPen(colorToQColor(_renderer.getColor2D((double) x * factor - dx, (double) y * factor - dy, 1.0)));
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painter.drawPoint(x, y);
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}
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}
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}
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